๐Ÿงช

The Evolution of Materials Science

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Keywords
์žฌ๋ฃŒ ๊ณผํ•™์˜ ์ง„ํ™” / ์‹ ์†Œ์žฌ ๊ฐœ๋ฐœ / ๋‚˜๋…ธ ๊ธฐ์ˆ  / ์‚ฐ์—…์  ์‘์šฉ
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Section
Advanced Vocabulary
๐Ÿงช
TL;DR ๐Ÿฆ„
  • ๐Ÿงฑ ์žฌ๋ฃŒ ๊ณผํ•™ means materials science: the study of how materials are structured, improved, processed, and used in real industries.
  • ๐Ÿ”ฌ Advanced Korean texts often connect ์‹ ์†Œ์žฌ ๊ฐœ๋ฐœ (new-material development), ๋‚˜๋…ธ ๊ธฐ์ˆ  (nanotechnology), and ์‚ฐ์—…์  ์‘์šฉ (industrial application) in one cause-and-effect chain.
  • ๐Ÿญ To sound precise, pair each material with its key property: ๊ฐ•๋„ (strength), ๋‚ด๊ตฌ์„ฑ (durability), ์ „๋„์„ฑ (conductivity), ๋‚ด์—ด์„ฑ (heat resistance), or ์ƒ์ฒด ์ ํ•ฉ์„ฑ (biocompatibility).
๐ŸŽง
๐ŸŽง Iru Helper Note
Use
Korean Helper Widgets
Korean Helper Widgets
whenever a long Korean phrase feels like a tiny science train ๐Ÿš†. Try typing ์žฌ๋ฃŒ ๊ณผํ•™์˜ ์ง„ํ™” (the evolution of materials science), ๋‚˜๋…ธ ๊ธฐ์ˆ ์˜ ๋ฐœ์ „ (the development of nanotechnology), or ์‚ฐ์—…์  ์‘์šฉ ๊ฐ€๋Šฅ์„ฑ (potential for industrial application) to hear the rhythm.
ย 

๐ŸŒˆ The Big Picture

์žฌ๋ฃŒ ๊ณผํ•™ (materials science) is the field that studies how materials are made, how their structures affect their properties, and how those properties can solve real-world problems. In advanced Korean, this topic rarely appears as a simple list of materials. It usually appears as a process: a limitation is found, a new material is developed, performance improves, and the material is applied in industry. ๐Ÿงช
A useful reading chain is: ๊ธฐ์กด ์žฌ๋ฃŒ์˜ ํ•œ๊ณ„ (limitations of existing materials) โ†’ ์‹ ์†Œ์žฌ ๊ฐœ๋ฐœ (new-material development) โ†’ ์„ฑ๋Šฅ ํ–ฅ์ƒ (performance improvement) โ†’ ์‚ฐ์—…์  ์‘์šฉ (industrial application) โ†’ ์ƒ์šฉํ™” (commercialization). If you can follow that chain, science articles stop looking like a wall of lab coats. ๐Ÿฅผ
This lesson is vocabulary-focused, not engineering-focused. You do not need to calculate anything. Your goal is to recognize and produce precise Korean phrases for materials, properties, development, and application. ๐Ÿญ

๐ŸŽจ The Core Materials Science Family

๐Ÿงฑ 1. Materials: what is being developed?

  • ๊ธˆ์† ์žฌ๋ฃŒ = metallic materials. These often appear with ๊ฐ•๋„ (strength), ์ „๋„์„ฑ (conductivity), and ํ•ฉ๊ธˆ (alloy). Example context: aircraft parts or electronic components. โœˆ๏ธ
  • ๊ณ ๋ถ„์ž ์žฌ๋ฃŒ = polymer materials. These include plastics, films, and fibers; they often appear with ๊ฐ€๋ณ๋‹ค (to be light) and ๊ฐ€๊ณต์ด ์‰ฝ๋‹ค (to be easy to process). ๐Ÿงต
  • ์„ธ๋ผ๋ฏน ์žฌ๋ฃŒ = ceramic materials. These are often linked to ๋‚ด์—ด์„ฑ (heat resistance) and ๋‚ด์‹์„ฑ (corrosion resistance). ๐Ÿ”ฅ
  • ๋ณตํ•ฉ์žฌ = composite material, a material made by combining two or more materials. ํƒ„์†Œ ์„ฌ์œ  ๋ณตํ•ฉ์žฌ means carbon-fiber composite and is often described as light but strong. ๐Ÿšด
  • ์ƒ์ฒด ์žฌ๋ฃŒ = biomaterial, a material used in or near the human body. It must have ์ƒ์ฒด ์ ํ•ฉ์„ฑ (biocompatibility), meaning it does not harm the body and can function safely. ๐Ÿฆด
  • ๋‚˜๋…ธ ์†Œ์žฌ = nanomaterial, a material engineered at an extremely small scale. It is often discussed with ๋‚˜๋…ธ ๊ธฐ์ˆ  (nanotechnology), ํ‘œ๋ฉด์  (surface area), and ์ •๋ฐ€ํ•œ ์กฐ์ ˆ (precise control). ๐Ÿ”ฌ

โš™๏ธ 2. Properties: why is the material useful?

  • ๊ฐ•๋„ = strength, the ability to withstand force. Use ๊ฐ•๋„๊ฐ€ ๋†’๋‹ค (strength is high), not just ๊ฐ•ํ•˜๋‹ค (to be strong), when writing formally. ๐Ÿ—๏ธ
  • ๋‚ด๊ตฌ์„ฑ = durability, the ability to last without being damaged easily. Common phrase: ๋‚ด๊ตฌ์„ฑ์ด ๋›ฐ์–ด๋‚˜๋‹ค (durability is excellent). ๐Ÿ› ๏ธ
  • ์ „๋„์„ฑ = conductivity, the ability to transmit electricity or heat. Common phrase: ์ „๊ธฐ ์ „๋„์„ฑ์ด ์šฐ์ˆ˜ํ•˜๋‹ค (electrical conductivity is excellent). โšก
  • ๋‚ด์—ด์„ฑ = heat resistance, the ability to withstand high temperature. Common phrase: ๊ณ ์˜จ์—์„œ๋„ ์•ˆ์ •์ ์ด๋‹ค (stable even at high temperatures). ๐Ÿ”ฅ
  • ์ƒ์ฒด ์ ํ•ฉ์„ฑ = biocompatibility, the ability to be safely used with the human body. Common phrase: ์ธ์ฒด์— ํ•ด๋ฅผ ๋ผ์น˜์ง€ ์•Š๋‹ค (not harm the human body). ๐Ÿซ€
  • ์นœํ™˜๊ฒฝ์„ฑ = environmental friendliness, used when materials reduce pollution, waste, or resource use. ๐ŸŒฑ

๐Ÿญ 3. Development and application: what happens next?

  • ๊ฐœ๋ฐœ๋˜๋‹ค = to be developed; ๊ฐœ๋ฐœํ•˜๋‹ค = to develop.
  • ์ ์šฉ๋˜๋‹ค = to be applied; ์ ์šฉํ•˜๋‹ค = to apply.
  • ๋Œ€์ฒดํ•˜๋‹ค = to replace. Example: a biodegradable polymer can replace conventional plastic.
  • ํ–ฅ์ƒ๋˜๋‹ค = to be improved. It often pairs with ์„ฑ๋Šฅ (performance), ํšจ์œจ (efficiency), or ๋‚ด๊ตฌ์„ฑ (durability).
  • ์ƒ์šฉํ™”๋˜๋‹ค = to be commercialized, meaning a technology becomes usable in the market or real industry.
  • ํ™œ์šฉ ๊ฐ€๋Šฅ์„ฑ์ด ํฌ๋‹ค = has great potential for use. This is a polished way to discuss future applications without claiming something is already fully commercialized. ๐Ÿš€

๐Ÿ› ๏ธ How They Work in a Sentence

  1. ํƒ„์†Œ ์„ฌ์œ  ๋ณตํ•ฉ์žฌ๋Š” ๊ฐ€๋ณ์ง€๋งŒ ๊ฐ•๋„๊ฐ€ ๋†’์•„ ํ•ญ๊ณต์šฐ์ฃผ ์‚ฐ์—…์—์„œ ๋„๋ฆฌ ํ™œ์šฉ๋œ๋‹ค.
    1. Carbon-fiber composites are light but have high strength, so they are widely used in the aerospace industry. โœˆ๏ธ
      Notes: ๊ฐ€๋ณ๋‹ค = to be light; ๊ฐ•๋„๊ฐ€ ๋†’๋‹ค = strength is high; ํ•ญ๊ณต์šฐ์ฃผ ์‚ฐ์—… = aerospace industry; ํ™œ์šฉ๋˜๋‹ค = to be utilized.
  1. ๋‚˜๋…ธ ๊ธฐ์ˆ ์ด ๋ฐœ์ „ํ•จ์— ๋”ฐ๋ผ ์˜๋ฃŒ์šฉ ์„ผ์„œ์˜ ์ •๋ฐ€๋„๊ฐ€ ํ–ฅ์ƒ๋˜์—ˆ๋‹ค.
    1. As nanotechnology developed, the precision of medical sensors improved. ๐Ÿฉบ
      Notes: ๋ฐœ์ „ํ•จ์— ๋”ฐ๋ผ = as something develops; ์˜๋ฃŒ์šฉ ์„ผ์„œ = medical sensor; ์ •๋ฐ€๋„ = precision; ํ–ฅ์ƒ๋˜๋‹ค = to improve.
  1. ์ƒ๋ถ„ํ•ด์„ฑ ๊ณ ๋ถ„์ž๋Š” ๊ธฐ์กด ํ”Œ๋ผ์Šคํ‹ฑ์„ ๋Œ€์ฒดํ•  ์นœํ™˜๊ฒฝ ์†Œ์žฌ๋กœ ์ฃผ๋ชฉ๋ฐ›๊ณ  ์žˆ๋‹ค.
    1. Biodegradable polymers are receiving attention as eco-friendly materials that can replace conventional plastic. ๐ŸŒฑ
      Notes: ์ƒ๋ถ„ํ•ด์„ฑ = biodegradable; ๊ธฐ์กด = existing/conventional; ๋Œ€์ฒดํ•˜๋‹ค = to replace; ์ฃผ๋ชฉ๋ฐ›๋‹ค = to receive attention.

๐Ÿงฉ General Formation Rule

For advanced science vocabulary, build noun phrases from modifier + core noun:
  • ์‹ ์†Œ์žฌ ๊ฐœ๋ฐœ = new-material development. ์‹ ์†Œ์žฌ (new material) modifies ๊ฐœ๋ฐœ (development).
  • ์‚ฐ์—…์  ์‘์šฉ = industrial application. ์‚ฐ์—…์  (industrial) modifies ์‘์šฉ (application).
  • ๋Œ€๋Ÿ‰ ์ƒ์‚ฐ ๊ธฐ์ˆ  = mass-production technology. ๋Œ€๋Ÿ‰ ์ƒ์‚ฐ (mass production) modifies ๊ธฐ์ˆ  (technology).
  • ์•ˆ์ •์„ฑ ๊ฒ€์ฆ = safety/stability verification. ์•ˆ์ •์„ฑ (stability/safety) modifies ๊ฒ€์ฆ (verification).
For process sentences, use these polished frames:
  • A์˜ ํ•œ๊ณ„๋กœ ์ธํ•ด B๊ฐ€ ํ•„์š”ํ•ด์กŒ๋‹ค. = Because of Aโ€™s limitations, B became necessary.
  • A๊ฐ€ ๋ฐœ์ „ํ•จ์— ๋”ฐ๋ผ B๊ฐ€ ๊ฐ€๋Šฅํ•ด์กŒ๋‹ค. = As A developed, B became possible.
  • A๋Š” B ๋ถ„์•ผ์—์„œ ํ™œ์šฉ ๊ฐ€๋Šฅ์„ฑ์ด ํฌ๋‹ค. = A has great potential for use in field B.
  • A๊ฐ€ ์ƒ์šฉํ™”๋˜๋ ค๋ฉด B๊ฐ€ ํ™•๋ณด๋˜์–ด์•ผ ํ•œ๋‹ค. = For A to be commercialized, B must be secured.

๐Ÿ“š Cross-check note

The Korean terms and usage patterns in this lesson were cross-checked against National Institute of Korean Language resources and standard dictionary-style usage on korean.go.kr, especially terms such as ์žฌ๋ฃŒ (material), ๊ณผํ•™ (science), ๊ฐœ๋ฐœ (development), ์‘์šฉ (application), ๋Œ€์ฒด (replacement), and ์ƒ์šฉํ™” (commercialization). โœ…

๐Ÿชž Synonym Alert

  • ์žฌ๋ฃŒ / ์†Œ์žฌ โ€” both can mean material. ์žฌ๋ฃŒ is broad and everyday; ์†Œ์žฌ sounds common in industrial, design, and technology contexts.
  • ์‘์šฉ / ํ™œ์šฉ โ€” both relate to use/application. ์‘์šฉ often means applying a theory or technology to a field; ํ™œ์šฉ emphasizes practical use.
  • ๋ฐœ์ „ / ์ง„ํ™” โ€” both can describe development/evolution. ๋ฐœ์ „ is general improvement or progress; ์ง„ํ™” stresses gradual transformation over time.
  • ์ƒ์šฉํ™” / ์‹ค์šฉํ™” โ€” both relate to practical adoption. ์ƒ์šฉํ™” highlights market or commercial use; ์‹ค์šฉํ™” highlights practical usability.

โš ๏ธ Pitfalls to Dodge

  • โŒ ์ด ์žฌ๋ฃŒ๋Š” ๊ฐ•ํ•˜๋‹ค. โ†’ โœ… ์ด ์žฌ๋ฃŒ๋Š” ๊ฐ•๋„๊ฐ€ ๋†’๋‹ค. (For formal science writing, name the property: โ€œstrength is high.โ€ ๐Ÿ—๏ธ)
  • โŒ ๋‚˜๋…ธ ๊ธฐ์ˆ ์€ ์ž‘์€ ๊ธฐ์ˆ ์ด๋‹ค. โ†’ โœ… ๋‚˜๋…ธ ๊ธฐ์ˆ ์€ ๋ฌผ์งˆ์„ ๋งค์šฐ ์ž‘์€ ๋‹จ์œ„์—์„œ ์กฐ์ ˆํ•˜๋Š” ๊ธฐ์ˆ ์ด๋‹ค. (Nanotechnology is not just โ€œsmall technologyโ€; it involves controlling materials at tiny scales. ๐Ÿ”ฌ)
  • โŒ ๊ทธ๋ž˜ํ•€์€ ์Šค๋งˆํŠธํฐ์ด๋‹ค. โ†’ โœ… ๊ทธ๋ž˜ํ•€์€ ์Šค๋งˆํŠธํฐ ํ™”๋ฉด์— ์ ์šฉ๋  ์ˆ˜ ์žˆ๋Š” ์†Œ์žฌ์ด๋‹ค. (Do not confuse a material with the product that may use it. ๐Ÿ“ฑ)
  • โŒ ์—ฐ๊ตฌ์— ์„ฑ๊ณตํ•˜๋ฉด ๋ฐ”๋กœ ์ƒ์šฉํ™”๋œ๋‹ค. โ†’ โœ… ์—ฐ๊ตฌ์— ์„ฑ๊ณตํ•ด๋„ ์•ˆ์ •์„ฑ ๊ฒ€์ฆ๊ณผ ๋Œ€๋Ÿ‰ ์ƒ์‚ฐ ๊ธฐ์ˆ ์ด ํ•„์š”ํ•˜๋‹ค. (Research success does not automatically mean commercialization. ๐Ÿญ)
  • โŒ ์‚ฐ์—…์— ์“ฐ์ธ๋‹ค. โ†’ โœ… ์ „๊ธฐ์ฐจ ๋ฐฐํ„ฐ๋ฆฌ, ์˜๋ฃŒ์šฉ ์„ผ์„œ, ํ•ญ๊ณต๊ธฐ ๋ถ€ํ’ˆ ๋“ฑ์— ์ ์šฉ๋œ๋‹ค. (Specific fields sound more advanced than vague โ€œindustry.โ€ ๐Ÿš—)
๐ŸŽ‰ Materials science vocabulary is really a story of problem โ†’ material โ†’ property โ†’ application. Follow that chain, and even dense science passages become a well-labeled toolbox. ๐Ÿงฐ

Try this exercise

Instructions: Complete each sentence with the best Korean science-vocabulary word or phrase. Say the full sentence aloud, check whether the English meaning still makes sense, then open the Answer toggle. ๐Ÿงช
1. ํƒ„์†Œ ์„ฌ์œ  ๏ผฟ๏ผฟ๏ผฟ๏ผฟ๋Š” ๊ฐ€๋ณ์ง€๋งŒ ๊ฐ•๋„๊ฐ€ ๋†’๋‹ค.
Carbon-fiber composites are light but have high strength. ๐Ÿšด
Answer
๋ณตํ•ฉ์žฌ โ€” ๋ณตํ•ฉ์žฌ means โ€œcomposite material,โ€ made by combining two or more materials.
2. ์ธ๊ณต ๊ด€์ ˆ์—๋Š” ๋†’์€ ๏ผฟ๏ผฟ๏ผฟ๏ผฟ์ด ํ•„์š”ํ•˜๋‹ค.
Artificial joints require high biocompatibility. ๐Ÿฆด
Answer
์ƒ์ฒด ์ ํ•ฉ์„ฑ โ€” It means a material can be safely used with the human body.
3. ๊ทธ๋ž˜ํ•€์€ ์ „๊ธฐ ๏ผฟ๏ผฟ๏ผฟ๏ผฟ์ด ์šฐ์ˆ˜ํ•œ ์†Œ์žฌ๋กœ ์•Œ๋ ค์ ธ ์žˆ๋‹ค.
Graphene is known as a material with excellent electrical conductivity. โšก
Answer
์ „๋„์„ฑ โ€” ์ „๋„์„ฑ is the ability to transmit electricity or heat.
4. ์„ธ๋ผ๋ฏน ์žฌ๋ฃŒ๋Š” ๋†’์€ ์˜จ๋„์—์„œ๋„ ๏ผฟ๏ผฟ๏ผฟ๏ผฟ์ด ๋›ฐ์–ด๋‚˜๋‹ค.
Ceramic materials have excellent heat resistance even at high temperatures. ๐Ÿ”ฅ
Answer
๋‚ด์—ด์„ฑ โ€” ๋‚ด์—ด์„ฑ means resistance to heat.
5. ์ƒ๋ถ„ํ•ด์„ฑ ๊ณ ๋ถ„์ž๋Š” ๊ธฐ์กด ํ”Œ๋ผ์Šคํ‹ฑ์„ ๏ผฟ๏ผฟ๏ผฟ๏ผฟํ•  ์ˆ˜ ์žˆ๋‹ค.
Biodegradable polymers can replace conventional plastic. ๐ŸŒฑ
Answer
๋Œ€์ฒด โ€” The full verb is ๋Œ€์ฒดํ•˜๋‹ค, โ€œto replace.โ€
6. ๋‚˜๋…ธ ๊ธฐ์ˆ ์ด ๋ฐœ์ „ํ•จ์— ๋”ฐ๋ผ ์„ผ์„œ์˜ ์ •๋ฐ€๋„๊ฐ€ ๏ผฟ๏ผฟ๏ผฟ๏ผฟ๋˜์—ˆ๋‹ค.
As nanotechnology developed, sensor precision improved. ๐Ÿฉบ
Answer
ํ–ฅ์ƒ โ€” The full verb is ํ–ฅ์ƒ๋˜๋‹ค, โ€œto be improved.โ€
7. ์—ฐ๊ตฌ์‹ค ๋‹จ๊ณ„์˜ ๊ธฐ์ˆ ์ด ์‹œ์žฅ์—์„œ ์“ฐ์ด๋ฉด ๏ผฟ๏ผฟ๏ผฟ๏ผฟ๋˜์—ˆ๋‹ค๊ณ  ๋งํ•  ์ˆ˜ ์žˆ๋‹ค.
When lab-stage technology is used in the market, we can say it has been commercialized. ๐Ÿช
Answer
์ƒ์šฉํ™” โ€” The full verb is ์ƒ์šฉํ™”๋˜๋‹ค, โ€œto be commercialized.โ€
8. ์ด ์†Œ์žฌ๋Š” ์˜๋ฃŒ ๋ถ„์•ผ์—์„œ ๏ผฟ๏ผฟ๏ผฟ๏ผฟ ๊ฐ€๋Šฅ์„ฑ์ด ํฌ๋‹ค.
This material has great potential for use in the medical field. ๐Ÿฅ
Answer
ํ™œ์šฉ โ€” ํ™œ์šฉ ๊ฐ€๋Šฅ์„ฑ์ด ํฌ๋‹ค means โ€œhas great potential for practical use.โ€
9. ์‹ ์†Œ์žฌ๊ฐ€ ๏ผฟ๏ผฟ๏ผฟ๏ผฟ๋˜๋ ค๋ฉด ์•ˆ์ •์„ฑ ๊ฒ€์ฆ์ด ํ•„์š”ํ•˜๋‹ค.
For a new material to be commercialized, safety verification is necessary. โœ…
Answer
์ƒ์šฉํ™” โ€” ์ƒ์šฉํ™”๋˜๋ ค๋ฉด means โ€œfor it to be commercialized.โ€
10. ๊ธฐ์กด ๋ฐฐํ„ฐ๋ฆฌ์˜ ํ•œ๊ณ„๋กœ ์ธํ•ด ๊ณ ์„ฑ๋Šฅ ๏ผฟ๏ผฟ๏ผฟ๏ผฟ๊ฐ€ ํ•„์š”ํ•ด์กŒ๋‹ค.
Because of the limitations of existing batteries, high-performance new materials became necessary. ๐Ÿ”‹
Answer
์‹ ์†Œ์žฌ โ€” ์‹ ์†Œ์žฌ means โ€œnew material.โ€
๐Ÿ“š
Vocabulary Box
  • ํƒ„์†Œ ์„ฌ์œ  โ†’ carbon fiber
  • ๋ณตํ•ฉ์žฌ โ†’ composite material
  • ๊ฐ€๋ณ๋‹ค โ†’ to be light
  • ๊ฐ•๋„ โ†’ strength
  • ์ธ๊ณต ๊ด€์ ˆ โ†’ artificial joint
  • ์ƒ์ฒด ์ ํ•ฉ์„ฑ โ†’ biocompatibility
  • ๊ทธ๋ž˜ํ•€ โ†’ graphene
  • ์ „๊ธฐ ์ „๋„์„ฑ โ†’ electrical conductivity
  • ์„ธ๋ผ๋ฏน ์žฌ๋ฃŒ โ†’ ceramic material
  • ๋‚ด์—ด์„ฑ โ†’ heat resistance
  • ์ƒ๋ถ„ํ•ด์„ฑ ๊ณ ๋ถ„์ž โ†’ biodegradable polymer
  • ๊ธฐ์กด ํ”Œ๋ผ์Šคํ‹ฑ โ†’ conventional plastic
  • ๋Œ€์ฒดํ•˜๋‹ค โ†’ to replace
  • ๋‚˜๋…ธ ๊ธฐ์ˆ  โ†’ nanotechnology
  • ์„ผ์„œ โ†’ sensor
  • ์ •๋ฐ€๋„ โ†’ precision
  • ํ–ฅ์ƒ๋˜๋‹ค โ†’ to improve
  • ์—ฐ๊ตฌ์‹ค ๋‹จ๊ณ„ โ†’ lab stage
  • ์‹œ์žฅ โ†’ market
  • ์ƒ์šฉํ™”๋˜๋‹ค โ†’ to be commercialized
  • ์˜๋ฃŒ ๋ถ„์•ผ โ†’ medical field
  • ํ™œ์šฉ ๊ฐ€๋Šฅ์„ฑ โ†’ potential for use
  • ์•ˆ์ •์„ฑ ๊ฒ€์ฆ โ†’ safety verification
  • ๋ฐฐํ„ฐ๋ฆฌ โ†’ battery
  • ์‹ ์†Œ์žฌ โ†’ new material
Tip ๐Ÿ’ก In formal science Korean, nouns like ๊ฐ•๋„, ๋‚ด์—ด์„ฑ, and ์ „๋„์„ฑ make your sentence sharper than vague adjectives.

๐Ÿš€
Want more reps? Head into the Practice Hub below when youโ€™re ready to turn these science words into fluent reading power. ๐Ÿง 
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๐Ÿ“ฆ
๐ŸŽฏ Practice Hub โ€” The Evolution of Materials Science
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Welcome to the materials-science training lab, where Korean vocabulary puts on safety goggles and becomes useful. ๐Ÿฅฝ Youโ€™ll practice identifying materials, matching properties, completing development-and-application sentences, and avoiding the classic โ€œeverything is just strongโ€ trap. ๐Ÿงฐ
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๐Ÿ”Š Audio reminder: Use
Korean Helper Widgets
Korean Helper Widgets
whenever you want to hear a science phrase or sentence aloud.
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๐Ÿ“ Instructions: Complete each Korean sentence with the best word or phrase, then compare the English meaning. Each exercise focuses on a different part of the lesson: material types, properties, development verbs, application frames, and pitfall repair.
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Exercise 1 โ€” Material Types Lab ๐Ÿงฑ

A. ์•Œ๋ฃจ๋ฏธ๋Š„ ํ•ฉ๊ธˆ์€ ๋Œ€ํ‘œ์ ์ธ ๏ผฟ๏ผฟ๏ผฟ๏ผฟ์ด๋‹ค.
Aluminum alloy is a representative metallic material. โœˆ๏ธ
Answer
๊ธˆ์† ์žฌ๋ฃŒ โ€” ๊ธˆ์† ์žฌ๋ฃŒ means โ€œmetallic material,โ€ often linked to strength and conductivity.
B. ํ”Œ๋ผ์Šคํ‹ฑ ํ•„๋ฆ„์€ ๏ผฟ๏ผฟ๏ผฟ๏ผฟ์˜ ํ•œ ์˜ˆ์ด๋‹ค.
Plastic film is one example of a polymer material. ๐ŸŽž๏ธ
Answer
๊ณ ๋ถ„์ž ์žฌ๋ฃŒ โ€” ๊ณ ๋ถ„์ž ์žฌ๋ฃŒ includes plastics, films, and fibers.
C. ๊ณ ์˜จ ์žฅ๋น„์—๋Š” ๏ผฟ๏ผฟ๏ผฟ๏ผฟ๊ฐ€ ์ž์ฃผ ์‚ฌ์šฉ๋œ๋‹ค.
Ceramic materials are often used in high-temperature equipment. ๐Ÿ”ฅ
Answer
์„ธ๋ผ๋ฏน ์žฌ๋ฃŒ โ€” These materials are useful when heat resistance matters.
D. ๋‘ ๊ฐ€์ง€ ์žฌ๋ฃŒ๋ฅผ ๊ฒฐํ•ฉํ•œ ์†Œ์žฌ๋ฅผ ๏ผฟ๏ผฟ๏ผฟ๏ผฟ๋ผ๊ณ  ํ•œ๋‹ค.
A material made by combining two materials is called a composite material. ๐Ÿงฉ
Answer
๋ณตํ•ฉ์žฌ โ€” ๋ณตํ•ฉ์žฌ literally refers to a combined/composite material.
E. ์ธ์ฒด ์•ˆ์— ์“ฐ์ด๋Š” ๏ผฟ๏ผฟ๏ผฟ๏ผฟ๋Š” ์•ˆ์ „์„ฑ์ด ์ค‘์š”ํ•˜๋‹ค.
For biomaterials used inside the human body, safety is important. ๐Ÿฆด
Answer
์ƒ์ฒด ์žฌ๋ฃŒ โ€” ์ƒ์ฒด ์žฌ๋ฃŒ is material used in or near the body.
F. ๋งค์šฐ ์ž‘์€ ๋‹จ์œ„์—์„œ ์„ค๊ณ„๋œ ์†Œ์žฌ๋ฅผ ๏ผฟ๏ผฟ๏ผฟ๏ผฟ๋ผ๊ณ  ๋ถ€๋ฅผ ์ˆ˜ ์žˆ๋‹ค.
A material designed at a very small scale can be called a nanomaterial. ๐Ÿ”ฌ
Answer
๋‚˜๋…ธ ์†Œ์žฌ โ€” ๋‚˜๋…ธ signals an extremely small scale.
G. ๊ฐ€๋ณ๊ณ  ๊ฐ•ํ•œ ๏ผฟ๏ผฟ๏ผฟ๏ผฟ๋Š” ํ•ญ๊ณต๊ธฐ ๋ถ€ํ’ˆ์— ์ ํ•ฉํ•˜๋‹ค.
Light and strong carbon-fiber composite is suitable for aircraft parts. ๐Ÿ›ฉ๏ธ
Answer
ํƒ„์†Œ ์„ฌ์œ  ๋ณตํ•ฉ์žฌ โ€” It is a common example of a light, strong composite.
H. ์ „์ž ๋ถ€ํ’ˆ์—๋Š” ์ „๋„์„ฑ์ด ์ข‹์€ ๏ผฟ๏ผฟ๏ผฟ๏ผฟ๊ฐ€ ํ•„์š”ํ•˜๋‹ค.
Electronic components need metallic materials with good conductivity. ๐Ÿ’ป
Answer
๊ธˆ์† ์žฌ๋ฃŒ โ€” Metals are often associated with conductivity.
I. ์˜๋ฃŒ์šฉ ์ž„ํ”Œ๋ž€ํŠธ์—๋Š” ๏ผฟ๏ผฟ๏ผฟ๏ผฟ๊ฐ€ ์‚ฌ์šฉ๋  ์ˆ˜ ์žˆ๋‹ค.
Biomaterials can be used in medical implants. ๐Ÿฆท
Answer
์ƒ์ฒด ์žฌ๋ฃŒ โ€” The body-contact context points to biomaterials.
J. ์„ฌ์œ ์™€ ํ•„๋ฆ„์„ ์„ค๋ช…ํ•  ๋•Œ๋Š” ๏ผฟ๏ผฟ๏ผฟ๏ผฟ๋ผ๋Š” ํ‘œํ˜„์ด ์ž์—ฐ์Šค๋Ÿฝ๋‹ค.
When describing fibers and films, the expression polymer material is natural. ๐Ÿงต
Answer
๊ณ ๋ถ„์ž ์žฌ๋ฃŒ โ€” This category covers plastic-like and fiber-like materials.
๐Ÿ“š
Vocabulary Box
  • ์•Œ๋ฃจ๋ฏธ๋Š„ ํ•ฉ๊ธˆ โ†’ aluminum alloy
  • ๋Œ€ํ‘œ์ ์ธ โ†’ representative
  • ๊ธˆ์† ์žฌ๋ฃŒ โ†’ metallic material
  • ํ”Œ๋ผ์Šคํ‹ฑ ํ•„๋ฆ„ โ†’ plastic film
  • ๊ณ ๋ถ„์ž ์žฌ๋ฃŒ โ†’ polymer material
  • ๊ณ ์˜จ ์žฅ๋น„ โ†’ high-temperature equipment
  • ์„ธ๋ผ๋ฏน ์žฌ๋ฃŒ โ†’ ceramic material
  • ๋‘ ๊ฐ€์ง€ โ†’ two kinds
  • ๊ฒฐํ•ฉํ•˜๋‹ค โ†’ to combine
  • ์†Œ์žฌ โ†’ material
  • ๋ณตํ•ฉ์žฌ โ†’ composite material
  • ์ธ์ฒด โ†’ human body
  • ์ƒ์ฒด ์žฌ๋ฃŒ โ†’ biomaterial
  • ์•ˆ์ „์„ฑ โ†’ safety
  • ์ž‘์€ ๋‹จ์œ„ โ†’ small scale/unit
  • ์„ค๊ณ„๋˜๋‹ค โ†’ to be designed
  • ๋‚˜๋…ธ ์†Œ์žฌ โ†’ nanomaterial
  • ํƒ„์†Œ ์„ฌ์œ  ๋ณตํ•ฉ์žฌ โ†’ carbon-fiber composite
  • ํ•ญ๊ณต๊ธฐ ๋ถ€ํ’ˆ โ†’ aircraft part
  • ์ „์ž ๋ถ€ํ’ˆ โ†’ electronic component
  • ์ „๋„์„ฑ โ†’ conductivity
  • ์˜๋ฃŒ์šฉ ์ž„ํ”Œ๋ž€ํŠธ โ†’ medical implant
  • ์„ฌ์œ  โ†’ fiber
  • ํ•„๋ฆ„ โ†’ film
Tip ๐Ÿ’ก First identify the material family, then attach the property that makes it useful.

Exercise 2 โ€” Property Match Workshop โš™๏ธ

A. ๋‹ค๋ฆฌ ๊ตฌ์กฐ๋ฌผ์—๋Š” ๋†’์€ ๏ผฟ๏ผฟ๏ผฟ๏ผฟ๊ฐ€ ์š”๊ตฌ๋œ๋‹ค.
Bridge structures require high strength. ๐ŸŒ‰
Answer
๊ฐ•๋„ โ€” ๊ฐ•๋„ measures the ability to withstand force.
B. ์˜ค๋ž˜ ์“ฐ๋Š” ์ž๋™์ฐจ ๋ถ€ํ’ˆ์—๋Š” ๏ผฟ๏ผฟ๏ผฟ๏ผฟ์ด ์ค‘์š”ํ•˜๋‹ค.
Durability is important for car parts used for a long time. ๐Ÿš—
Answer
๋‚ด๊ตฌ์„ฑ โ€” ๋‚ด๊ตฌ์„ฑ means the ability to last without damage.
C. ์ „์„ ์„ ๋งŒ๋“ค ๋•Œ๋Š” ์ „๊ธฐ ๏ผฟ๏ผฟ๏ผฟ๏ผฟ์„ ๊ณ ๋ คํ•ด์•ผ ํ•œ๋‹ค.
When making wires, electrical conductivity must be considered. ๐Ÿ”Œ
Answer
์ „๋„์„ฑ โ€” Wires need materials that transmit electricity well.
D. ์šฐ์ฃผ์„  ์™ธ๋ฒฝ์—๋Š” ๋›ฐ์–ด๋‚œ ๏ผฟ๏ผฟ๏ผฟ๏ผฟ์ด ํ•„์š”ํ•˜๋‹ค.
The outer wall of a spacecraft needs excellent heat resistance. ๐Ÿš€
Answer
๋‚ด์—ด์„ฑ โ€” High-temperature environments require heat resistance.
E. ์ธ๊ณต ํ˜ˆ๊ด€ ์†Œ์žฌ๋Š” ๏ผฟ๏ผฟ๏ผฟ๏ผฟ์„ ๊ฐ–์ถ”์–ด์•ผ ํ•œ๋‹ค.
Artificial blood-vessel materials must have biocompatibility. ๐Ÿซ€
Answer
์ƒ์ฒด ์ ํ•ฉ์„ฑ โ€” Body-contact materials must be safe for the body.
F. ์˜ค์—ผ์„ ์ค„์ด๋Š” ์†Œ์žฌ๋Š” ๏ผฟ๏ผฟ๏ผฟ๏ผฟ์ด ๋†’๋‹ค๊ณ  ๋งํ•  ์ˆ˜ ์žˆ๋‹ค.
A material that reduces pollution can be said to have high environmental friendliness. ๐ŸŒฑ
Answer
์นœํ™˜๊ฒฝ์„ฑ โ€” This property concerns environmental benefit.
G. ๊ณ ์˜จ์—์„œ๋„ ๋ณ€ํ˜•๋˜์ง€ ์•Š๋Š” ์„ฑ์งˆ์€ ๏ผฟ๏ผฟ๏ผฟ๏ผฟ์ด๋‹ค.
The property of not deforming even at high temperatures is heat resistance. ๐Ÿ”ฅ
Answer
๋‚ด์—ด์„ฑ โ€” The clue is โ€œhigh temperature.โ€
H. ์ „๊ธฐ์™€ ์—ด์„ ์ „๋‹ฌํ•˜๋Š” ๋Šฅ๋ ฅ์€ ๏ผฟ๏ผฟ๏ผฟ๏ผฟ์ด๋‹ค.
The ability to transmit electricity and heat is conductivity. โšก
Answer
์ „๋„์„ฑ โ€” ์ „๋„ relates to transmission/conduction.
I. ๋งˆ๋ชจ์— ์ž˜ ๊ฒฌ๋””๋Š” ์„ฑ์งˆ์€ ๏ผฟ๏ผฟ๏ผฟ๏ผฟ๊ณผ ๊ด€๋ จ๋œ๋‹ค.
The property of resisting wear is related to durability. ๐Ÿ› ๏ธ
Answer
๋‚ด๊ตฌ์„ฑ โ€” Wear resistance is a durability issue.
J. ์™ธ๋ถ€ ํž˜์„ ๊ฒฌ๋””๋Š” ๋Šฅ๋ ฅ์€ ๏ผฟ๏ผฟ๏ผฟ๏ผฟ๋ผ๊ณ  ํ•œ๋‹ค.
The ability to withstand external force is called strength. ๐Ÿ‹๏ธ
Answer
๊ฐ•๋„ โ€” This is more formal and precise than simply saying โ€œstrong.โ€
๐Ÿ“š
Vocabulary Box
  • ๋‹ค๋ฆฌ ๊ตฌ์กฐ๋ฌผ โ†’ bridge structure
  • ๋†’์€ โ†’ high
  • ๊ฐ•๋„ โ†’ strength
  • ์˜ค๋ž˜ ์“ฐ๋‹ค โ†’ to use for a long time
  • ์ž๋™์ฐจ ๋ถ€ํ’ˆ โ†’ car part
  • ๋‚ด๊ตฌ์„ฑ โ†’ durability
  • ์ „์„  โ†’ wire
  • ์ „๊ธฐ โ†’ electricity
  • ์ „๋„์„ฑ โ†’ conductivity
  • ๊ณ ๋ คํ•˜๋‹ค โ†’ to consider
  • ์šฐ์ฃผ์„  ์™ธ๋ฒฝ โ†’ spacecraft outer wall
  • ๋›ฐ์–ด๋‚˜๋‹ค โ†’ to be excellent
  • ๋‚ด์—ด์„ฑ โ†’ heat resistance
  • ์ธ๊ณต ํ˜ˆ๊ด€ โ†’ artificial blood vessel
  • ์ƒ์ฒด ์ ํ•ฉ์„ฑ โ†’ biocompatibility
  • ๊ฐ–์ถ”๋‹ค โ†’ to possess/equip
  • ์˜ค์—ผ โ†’ pollution
  • ์ค„์ด๋‹ค โ†’ to reduce
  • ์นœํ™˜๊ฒฝ์„ฑ โ†’ environmental friendliness
  • ๊ณ ์˜จ โ†’ high temperature
  • ๋ณ€ํ˜•๋˜๋‹ค โ†’ to deform
  • ์„ฑ์งˆ โ†’ property
  • ์ „๋‹ฌํ•˜๋‹ค โ†’ to transmit
  • ๋งˆ๋ชจ โ†’ wear/abrasion
  • ๊ฒฌ๋””๋‹ค โ†’ to withstand
  • ์™ธ๋ถ€ ํž˜ โ†’ external force
Tip ๐Ÿ’ก Properties often end in -์„ฑ, a noun-forming ending for โ€œqualityโ€ or โ€œcharacteristic.โ€

Exercise 3 โ€” Development Verbs + Process Flow ๐Ÿญ

A. ์ƒˆ๋กœ์šด ๋ฐฐํ„ฐ๋ฆฌ ์†Œ์žฌ๊ฐ€ ๏ผฟ๏ผฟ๏ผฟ๏ผฟ๋˜๋ฉด์„œ ์ถฉ์ „ ์‹œ๊ฐ„์ด ์ค„์—ˆ๋‹ค.
As a new battery material was developed, charging time decreased. ๐Ÿ”‹
Answer
๊ฐœ๋ฐœ โ€” ๊ฐœ๋ฐœ๋˜๋‹ค means โ€œto be developed.โ€
B. ๋‚˜๋…ธ ๊ธฐ์ˆ ์€ ์˜๋ฃŒ ์ง„๋‹จ ์žฅ๋น„์— ๏ผฟ๏ผฟ๏ผฟ๏ผฟ๋˜๊ณ  ์žˆ๋‹ค.
Nanotechnology is being applied to medical diagnostic equipment. ๐Ÿฉบ
Answer
์ ์šฉ โ€” ์ ์šฉ๋˜๋‹ค means โ€œto be applied.โ€
C. ์นœํ™˜๊ฒฝ ์†Œ์žฌ๊ฐ€ ์ผํšŒ์šฉ ํ”Œ๋ผ์Šคํ‹ฑ์„ ๏ผฟ๏ผฟ๏ผฟ๏ผฟํ•˜๊ณ  ์žˆ๋‹ค.
Eco-friendly materials are replacing disposable plastic. ๐ŸŒฟ
Answer
๋Œ€์ฒด โ€” ๋Œ€์ฒดํ•˜๋‹ค means โ€œto replace.โ€
D. ์ œ์กฐ ๊ณต์ •์ด ๊ฐœ์„ ๋˜๋ฉด์„œ ์ œํ’ˆ์˜ ์„ฑ๋Šฅ์ด ๏ผฟ๏ผฟ๏ผฟ๏ผฟ๋˜์—ˆ๋‹ค.
As the manufacturing process improved, the productโ€™s performance improved. ๐Ÿ—๏ธ
Answer
ํ–ฅ์ƒ โ€” ํ–ฅ์ƒ๋˜๋‹ค means โ€œto be improved.โ€
E. ์ด ๊ธฐ์ˆ ์€ ์•„์ง ๏ผฟ๏ผฟ๏ผฟ๏ผฟ ๋‹จ๊ณ„์— ์ด๋ฅด์ง€ ๋ชปํ–ˆ๋‹ค.
This technology has not yet reached the commercialization stage. ๐Ÿช
Answer
์ƒ์šฉํ™” โ€” ์ƒ์šฉํ™” ๋‹จ๊ณ„ is the commercialization stage.
F. ์•ˆ์ „์„ฑ ๊ฒ€์ฆ์ด ๋๋‚˜์•ผ ์˜๋ฃŒ ์†Œ์žฌ๊ฐ€ ๏ผฟ๏ผฟ๏ผฟ๏ผฟ๋  ์ˆ˜ ์žˆ๋‹ค.
Only after safety verification is finished can the medical material be commercialized. โœ…
Answer
์ƒ์šฉํ™” โ€” Commercialization requires safety and production readiness.
G. ๊ธฐ์กด ์†Œ์žฌ์˜ ํ•œ๊ณ„๋กœ ์ธํ•ด ์‹ ์†Œ์žฌ๊ฐ€ ๏ผฟ๏ผฟ๏ผฟ๏ผฟํ•ด์กŒ๋‹ค.
Because of the limitations of existing materials, new materials became necessary. ๐Ÿงช
Answer
ํ•„์š” โ€” ํ•„์š”ํ•ด์ง€๋‹ค means โ€œto become necessary.โ€
H. ๋Œ€๋Ÿ‰ ์ƒ์‚ฐ ๊ธฐ์ˆ ์ด ๏ผฟ๏ผฟ๏ผฟ๏ผฟ๋˜์–ด์•ผ ์‹œ์žฅ ์ง„์ž…์ด ๊ฐ€๋Šฅํ•˜๋‹ค.
Mass-production technology must be secured for market entry to be possible. ๐Ÿญ
Answer
ํ™•๋ณด โ€” ํ™•๋ณด๋˜๋‹ค means โ€œto be secured.โ€
I. ๊ธฐ์ˆ ์ด ๋ฐœ์ „ํ•จ์— ๋”ฐ๋ผ ์ƒˆ๋กœ์šด ์‘์šฉ ๋ถ„์•ผ๊ฐ€ ๏ผฟ๏ผฟ๏ผฟ๏ผฟ์กŒ๋‹ค.
As technology developed, new application fields became possible. ๐Ÿš€
Answer
๊ฐ€๋Šฅํ•ด โ€” ๊ฐ€๋Šฅํ•ด์ง€๋‹ค means โ€œto become possible.โ€
J. ์‹ ์†Œ์žฌ ์—ฐ๊ตฌ๋Š” ์—๋„ˆ์ง€ ๋ฌธ์ œ ํ•ด๊ฒฐ์— ๏ผฟ๏ผฟ๏ผฟ๏ผฟํ•˜๊ณ  ์žˆ๋‹ค.
New-material research is contributing to solving energy problems. โšก
Answer
๊ธฐ์—ฌ โ€” ๊ธฐ์—ฌํ•˜๋‹ค means โ€œto contribute.โ€
๐Ÿ“š
Vocabulary Box
  • ๋ฐฐํ„ฐ๋ฆฌ ์†Œ์žฌ โ†’ battery material
  • ๊ฐœ๋ฐœ๋˜๋‹ค โ†’ to be developed
  • ์ถฉ์ „ ์‹œ๊ฐ„ โ†’ charging time
  • ์ค„๋‹ค โ†’ to decrease
  • ๋‚˜๋…ธ ๊ธฐ์ˆ  โ†’ nanotechnology
  • ์˜๋ฃŒ ์ง„๋‹จ ์žฅ๋น„ โ†’ medical diagnostic equipment
  • ์ ์šฉ๋˜๋‹ค โ†’ to be applied
  • ์นœํ™˜๊ฒฝ ์†Œ์žฌ โ†’ eco-friendly material
  • ์ผํšŒ์šฉ ํ”Œ๋ผ์Šคํ‹ฑ โ†’ disposable plastic
  • ๋Œ€์ฒดํ•˜๋‹ค โ†’ to replace
  • ์ œ์กฐ ๊ณต์ • โ†’ manufacturing process
  • ๊ฐœ์„ ๋˜๋‹ค โ†’ to be improved
  • ์ œํ’ˆ โ†’ product
  • ์„ฑ๋Šฅ โ†’ performance
  • ํ–ฅ์ƒ๋˜๋‹ค โ†’ to be improved
  • ๊ธฐ์ˆ  โ†’ technology
  • ์ƒ์šฉํ™” ๋‹จ๊ณ„ โ†’ commercialization stage
  • ์•ˆ์ „์„ฑ ๊ฒ€์ฆ โ†’ safety verification
  • ์˜๋ฃŒ ์†Œ์žฌ โ†’ medical material
  • ๊ธฐ์กด ์†Œ์žฌ โ†’ existing material
  • ํ•œ๊ณ„ โ†’ limitation
  • ์‹ ์†Œ์žฌ โ†’ new material
  • ํ•„์š”ํ•ด์ง€๋‹ค โ†’ to become necessary
  • ๋Œ€๋Ÿ‰ ์ƒ์‚ฐ ๊ธฐ์ˆ  โ†’ mass-production technology
  • ํ™•๋ณด๋˜๋‹ค โ†’ to be secured
  • ์‹œ์žฅ ์ง„์ž… โ†’ market entry
  • ๊ฐ€๋Šฅํ•ด์ง€๋‹ค โ†’ to become possible
  • ์‘์šฉ ๋ถ„์•ผ โ†’ application field
  • ์—ฐ๊ตฌ โ†’ research
  • ์—๋„ˆ์ง€ ๋ฌธ์ œ โ†’ energy problem
  • ๊ธฐ์—ฌํ•˜๋‹ค โ†’ to contribute
Tip ๐Ÿ’ก Watch the process order: limitation โ†’ development โ†’ improvement โ†’ application โ†’ commercialization.

Exercise 4 โ€” Application Frames + Advanced Phrases ๐Ÿš€

A. ๊ทธ๋ž˜ํ•€์€ ์ฐจ์„ธ๋Œ€ ๋ฐ˜๋„์ฒด ๋ถ„์•ผ์—์„œ ๏ผฟ๏ผฟ๏ผฟ๏ผฟ ๊ฐ€๋Šฅ์„ฑ์ด ํฌ๋‹ค.
Graphene has great potential for use in next-generation semiconductors. ๐Ÿ’ป
Answer
ํ™œ์šฉ โ€” ํ™œ์šฉ ๊ฐ€๋Šฅ์„ฑ์ด ํฌ๋‹ค is a polished phrase for โ€œhas strong practical-use potential.โ€
B. ์ƒ์ฒด ์žฌ๋ฃŒ ์—ฐ๊ตฌ๋Š” ์ธ๊ณต ์žฅ๊ธฐ ๊ฐœ๋ฐœ์— ๏ผฟ๏ผฟ๏ผฟ๏ผฟํ•˜๊ณ  ์žˆ๋‹ค.
Biomaterial research is contributing to artificial-organ development. ๐Ÿซ€
Answer
๊ธฐ์—ฌ โ€” A๋Š” B์— ๊ธฐ์—ฌํ•˜๋‹ค = A contributes to B.
C. ์‹ ์†Œ์žฌ ๊ฐœ๋ฐœ์˜ ๏ผฟ๏ผฟ๏ผฟ๏ผฟ๋Š” ์‚ฐ์—… ๊ฒฝ์Ÿ๋ ฅ์„ ๋†’์ผ ์ˆ˜ ์žˆ๋‹ค.
The acceleration of new-material development can raise industrial competitiveness. ๐ŸŽ๏ธ
Answer
๊ฐ€์†ํ™” โ€” ๊ฐ€์†ํ™” means acceleration.
D. ์‚ฐ์—…์  ๏ผฟ๏ผฟ๏ผฟ๏ผฟ ๊ฐ€๋Šฅ์„ฑ์€ ์‹ค์ œ ์‚ฌ์šฉ ๊ฐ€๋Šฅ์„ฑ์„ ๋œปํ•œ๋‹ค.
Potential for industrial application means the possibility of real practical use. ๐Ÿญ
Answer
์‘์šฉ โ€” ์‚ฐ์—…์  ์‘์šฉ means industrial application.
E. ๋Œ€๋Ÿ‰ ์ƒ์‚ฐ์ด ์–ด๋ ต๋‹ค๋ฉด ๏ผฟ๏ผฟ๏ผฟ๏ผฟ์—๋Š” ์‹œ๊ฐ„์ด ๊ฑธ๋ฆฐ๋‹ค.
If mass production is difficult, commercialization takes time. โณ
Answer
์ƒ์šฉํ™” โ€” Commercialization depends on production, safety, and cost.
F. ๊ณ ์ฒด ์ „ํ•ด์งˆ ์†Œ์žฌ๋Š” ๋ฐฐํ„ฐ๋ฆฌ ์•ˆ์ „์„ฑ์„ ๋†’์ด๋Š” ๋ฐ ๏ผฟ๏ผฟ๏ผฟ๏ผฟ๋  ์ˆ˜ ์žˆ๋‹ค.
Solid electrolyte materials can be applied to improving battery safety. ๐Ÿ”‹
Answer
์ ์šฉ โ€” ์ ์šฉ๋˜๋‹ค means to be applied.
G. ์˜๋ฃŒ์šฉ ์„ผ์„œ๋Š” ๋‚˜๋…ธ ์†Œ์žฌ์˜ ์ •๋ฐ€ํ•œ ๏ผฟ๏ผฟ๏ผฟ๏ผฟ ๋•๋ถ„์— ๋ฐœ์ „ํ–ˆ๋‹ค.
Medical sensors developed thanks to the precise control of nanomaterials. ๐Ÿฉบ
Answer
์กฐ์ ˆ โ€” ์ •๋ฐ€ํ•œ ์กฐ์ ˆ means precise control.
H. ํ™˜๊ฒฝ ๋ฌธ์ œ๋ฅผ ํ•ด๊ฒฐํ•˜๋ ค๋ฉด ๊ธฐ์กด ์†Œ์žฌ์˜ ๏ผฟ๏ผฟ๏ผฟ๏ผฟ๋ฅผ ๋ถ„์„ํ•ด์•ผ ํ•œ๋‹ค.
To solve environmental problems, we must analyze the limitations of existing materials. ๐ŸŒ
Answer
ํ•œ๊ณ„ โ€” Identifying limits often starts the materials-science story.
I. ์—ฐ๊ตฌ ๊ฒฐ๊ณผ๊ฐ€ ์ œํ’ˆ์œผ๋กœ ์ด์–ด์ง€๋ ค๋ฉด ์•ˆ์ •์„ฑ ๏ผฟ๏ผฟ๏ผฟ๏ผฟ์ด ํ•„์š”ํ•˜๋‹ค.
For research results to lead to products, safety verification is necessary. โœ…
Answer
๊ฒ€์ฆ โ€” ์•ˆ์ •์„ฑ ๊ฒ€์ฆ means safety/stability verification.
J. ์žฌ๋ฃŒ์˜ ๏ผฟ๏ผฟ๏ผฟ๏ผฟ์™€ ์„ฑ์งˆ์„ ํ•จ๊ป˜ ์ดํ•ดํ•ด์•ผ ํ•œ๋‹ค.
We must understand a materialโ€™s structure and properties together. ๐Ÿงฌ
Answer
๊ตฌ์กฐ โ€” Materials science connects structure and properties.
๐Ÿ“š
Vocabulary Box
  • ๊ทธ๋ž˜ํ•€ โ†’ graphene
  • ์ฐจ์„ธ๋Œ€ ๋ฐ˜๋„์ฒด โ†’ next-generation semiconductor
  • ๋ถ„์•ผ โ†’ field
  • ํ™œ์šฉ ๊ฐ€๋Šฅ์„ฑ โ†’ potential for use
  • ์ƒ์ฒด ์žฌ๋ฃŒ ์—ฐ๊ตฌ โ†’ biomaterial research
  • ์ธ๊ณต ์žฅ๊ธฐ ๊ฐœ๋ฐœ โ†’ artificial-organ development
  • ๊ธฐ์—ฌํ•˜๋‹ค โ†’ to contribute
  • ์‹ ์†Œ์žฌ ๊ฐœ๋ฐœ โ†’ new-material development
  • ๊ฐ€์†ํ™” โ†’ acceleration
  • ์‚ฐ์—… ๊ฒฝ์Ÿ๋ ฅ โ†’ industrial competitiveness
  • ์‚ฐ์—…์  ์‘์šฉ โ†’ industrial application
  • ์‹ค์ œ ์‚ฌ์šฉ ๊ฐ€๋Šฅ์„ฑ โ†’ possibility of real use
  • ๋Œ€๋Ÿ‰ ์ƒ์‚ฐ โ†’ mass production
  • ์ƒ์šฉํ™” โ†’ commercialization
  • ๊ณ ์ฒด ์ „ํ•ด์งˆ ์†Œ์žฌ โ†’ solid electrolyte material
  • ๋ฐฐํ„ฐ๋ฆฌ ์•ˆ์ „์„ฑ โ†’ battery safety
  • ์ ์šฉ๋˜๋‹ค โ†’ to be applied
  • ์˜๋ฃŒ์šฉ ์„ผ์„œ โ†’ medical sensor
  • ๋‚˜๋…ธ ์†Œ์žฌ โ†’ nanomaterial
  • ์ •๋ฐ€ํ•œ ์กฐ์ ˆ โ†’ precise control
  • ํ™˜๊ฒฝ ๋ฌธ์ œ โ†’ environmental problem
  • ๊ธฐ์กด ์†Œ์žฌ โ†’ existing material
  • ํ•œ๊ณ„ โ†’ limitation
  • ์—ฐ๊ตฌ ๊ฒฐ๊ณผ โ†’ research result
  • ์ œํ’ˆ โ†’ product
  • ์•ˆ์ •์„ฑ ๊ฒ€์ฆ โ†’ safety verification
  • ์žฌ๋ฃŒ โ†’ material
  • ๊ตฌ์กฐ โ†’ structure
  • ์„ฑ์งˆ โ†’ property
Tip ๐Ÿ’ก ๊ฐ€๋Šฅ์„ฑ์ด ํฌ๋‹ค is useful when a technology is promising but not guaranteed.

Exercise 5 โ€” Mixed Mastery + Pitfall Patrol ๐Ÿ›ก๏ธ

A. ์ด ์žฌ๋ฃŒ๋Š” ๏ผฟ๏ผฟ๏ผฟ๏ผฟ๊ฐ€ ๋†’๋‹ค.
This material has high strength. ๐Ÿ—๏ธ
Answer
๊ฐ•๋„ โ€” โŒ Avoid vague ๊ฐ•ํ•˜๋‹ค in formal science writing; โœ… use ๊ฐ•๋„๊ฐ€ ๋†’๋‹ค.
B. ๋‚˜๋…ธ ๊ธฐ์ˆ ์€ ๋ฌผ์งˆ์„ ๋งค์šฐ ์ž‘์€ ๋‹จ์œ„์—์„œ ๏ผฟ๏ผฟ๏ผฟ๏ผฟํ•˜๋Š” ๊ธฐ์ˆ ์ด๋‹ค.
Nanotechnology is technology that controls matter at a very small scale. ๐Ÿ”ฌ
Answer
์กฐ์ ˆ โ€” โŒ Not just โ€œsmall technologyโ€; โœ… it involves precise control at tiny scales.
C. ๊ทธ๋ž˜ํ•€์€ ์Šค๋งˆํŠธํฐ ํ™”๋ฉด์— ์ ์šฉ๋  ์ˆ˜ ์žˆ๋Š” ๏ผฟ๏ผฟ๏ผฟ๏ผฟ์ด๋‹ค.
Graphene is a material that can be applied to smartphone screens. ๐Ÿ“ฑ
Answer
์†Œ์žฌ โ€” โŒ Do not call the material the product; โœ… call it a material used in a product.
D. ์—ฐ๊ตฌ์— ์„ฑ๊ณตํ•ด๋„ ๏ผฟ๏ผฟ๏ผฟ๏ผฟ ๊ฒ€์ฆ์ด ํ•„์š”ํ•˜๋‹ค.
Even if the research succeeds, safety verification is necessary. โœ…
Answer
์•ˆ์ •์„ฑ โ€” โŒ Research success is not automatic commercialization; โœ… safety verification matters.
E. ์ „๊ธฐ์ฐจ ๋ฐฐํ„ฐ๋ฆฌ์™€ ํ•ญ๊ณต๊ธฐ ๋ถ€ํ’ˆ์€ ๊ตฌ์ฒด์ ์ธ ๏ผฟ๏ผฟ๏ผฟ๏ผฟ ๋ถ„์•ผ์ด๋‹ค.
Electric-vehicle batteries and aircraft parts are specific application fields. ๐Ÿš—
Answer
์‘์šฉ โ€” โŒ Avoid vague โ€œused in industryโ€; โœ… name specific application fields.
F. ์žฌ๋ฃŒ ๊ณผํ•™์—์„œ๋Š” ๊ตฌ์กฐ์™€ ๏ผฟ๏ผฟ๏ผฟ๏ผฟ์˜ ๊ด€๊ณ„๋ฅผ ๋ถ„์„ํ•œ๋‹ค.
In materials science, the relationship between structure and properties is analyzed. ๐Ÿงฌ
Answer
์„ฑ์งˆ โ€” Structure-property relationships are central to materials science.
G. ์ƒ๋ถ„ํ•ด์„ฑ ๊ณ ๋ถ„์ž๋Š” ์นœํ™˜๊ฒฝ ๏ผฟ๏ผฟ๏ผฟ๏ผฟ๋กœ ์ฃผ๋ชฉ๋ฐ›๊ณ  ์žˆ๋‹ค.
Biodegradable polymers are receiving attention as eco-friendly materials. ๐ŸŒฑ
Answer
์†Œ์žฌ โ€” ์†Œ์žฌ sounds natural in technology and industry contexts.
H. ์‹ค์ œ ์‹œ์žฅ์—์„œ ์“ฐ์ด๋Š” ๋‹จ๊ณ„๋Š” ๏ผฟ๏ผฟ๏ผฟ๏ผฟ ๋‹จ๊ณ„์ด๋‹ค.
The stage of being used in the real market is the commercialization stage. ๐Ÿช
Answer
์ƒ์šฉํ™” โ€” ์ƒ์šฉํ™” emphasizes market or commercial use.
I. ๊ธฐ์กด ์žฌ๋ฃŒ์˜ ํ•œ๊ณ„๋ฅผ ๊ทน๋ณตํ•˜๊ธฐ ์œ„ํ•ด ๏ผฟ๏ผฟ๏ผฟ๏ผฟ๊ฐ€ ๊ฐœ๋ฐœ๋œ๋‹ค.
New materials are developed to overcome the limitations of existing materials. ๐Ÿงช
Answer
์‹ ์†Œ์žฌ โ€” This completes the problem โ†’ solution pattern.
J. ์‚ฐ์—… ํ˜„์žฅ์—์„œ ์‹ค์ œ๋กœ ์‚ฌ์šฉํ•  ์ˆ˜ ์žˆ๋Š” ๊ฐ€๋Šฅ์„ฑ์„ ๏ผฟ๏ผฟ๏ผฟ๏ผฟ ๊ฐ€๋Šฅ์„ฑ์ด๋ผ๊ณ  ํ•œ๋‹ค.
The possibility of actual use in industrial settings is called application potential. ๐Ÿญ
Answer
์‘์šฉ โ€” ์‘์šฉ ๊ฐ€๋Šฅ์„ฑ means potential for application.
๐Ÿ“š
Vocabulary Box
  • ์žฌ๋ฃŒ โ†’ material
  • ๊ฐ•๋„ โ†’ strength
  • ๋†’๋‹ค โ†’ to be high
  • ๋‚˜๋…ธ ๊ธฐ์ˆ  โ†’ nanotechnology
  • ๋ฌผ์งˆ โ†’ matter/substance
  • ์ž‘์€ ๋‹จ์œ„ โ†’ small scale/unit
  • ์กฐ์ ˆํ•˜๋‹ค โ†’ to control
  • ๊ทธ๋ž˜ํ•€ โ†’ graphene
  • ์Šค๋งˆํŠธํฐ ํ™”๋ฉด โ†’ smartphone screen
  • ์ ์šฉ๋˜๋‹ค โ†’ to be applied
  • ์†Œ์žฌ โ†’ material
  • ์—ฐ๊ตฌ โ†’ research
  • ์„ฑ๊ณตํ•˜๋‹ค โ†’ to succeed
  • ์•ˆ์ •์„ฑ ๊ฒ€์ฆ โ†’ safety verification
  • ์ „๊ธฐ์ฐจ ๋ฐฐํ„ฐ๋ฆฌ โ†’ electric-vehicle battery
  • ํ•ญ๊ณต๊ธฐ ๋ถ€ํ’ˆ โ†’ aircraft part
  • ๊ตฌ์ฒด์ ์ธ โ†’ specific
  • ์‘์šฉ ๋ถ„์•ผ โ†’ application field
  • ์žฌ๋ฃŒ ๊ณผํ•™ โ†’ materials science
  • ๊ตฌ์กฐ โ†’ structure
  • ์„ฑ์งˆ โ†’ property
  • ๊ด€๊ณ„ โ†’ relationship
  • ๋ถ„์„ํ•˜๋‹ค โ†’ to analyze
  • ์ƒ๋ถ„ํ•ด์„ฑ ๊ณ ๋ถ„์ž โ†’ biodegradable polymer
  • ์นœํ™˜๊ฒฝ โ†’ eco-friendly
  • ์ฃผ๋ชฉ๋ฐ›๋‹ค โ†’ to receive attention
  • ์‹œ์žฅ โ†’ market
  • ์ƒ์šฉํ™” ๋‹จ๊ณ„ โ†’ commercialization stage
  • ๊ธฐ์กด ์žฌ๋ฃŒ โ†’ existing material
  • ํ•œ๊ณ„ โ†’ limitation
  • ๊ทน๋ณตํ•˜๋‹ค โ†’ to overcome
  • ์‹ ์†Œ์žฌ โ†’ new material
  • ์‚ฐ์—… ํ˜„์žฅ โ†’ industrial setting
  • ์‹ค์ œ๋กœ โ†’ actually
  • ์‘์šฉ ๊ฐ€๋Šฅ์„ฑ โ†’ application potential
Tip ๐Ÿ’ก Pitfall patrol rule: be specific about the property, the material, and the application field.
ย 
๐ŸŽ‰ You finished the lab! Now you can read materials-science passages as a chain of limitation โ†’ new material โ†’ property โ†’ application โ†’ commercialization instead of a foggy pile of technical nouns. ๐Ÿงชโœจ