出典:Wiktionary
出典:『Wiktionary』 (2024/10/29 22:36 UTC 版)
natural rubber (uncountable)
出典:Wikipedia
出典:『Wikipedia』 (2011/06/29 17:14 UTC 版)
Natural rubber, also called China rubber or caoutchouc, is an elastomer (an elastic hydrocarbon polymer) that was originally derived from latex, a milky colloid produced by some plants. The plants would be ‘tapped’, that is, an incision made into the bark of the tree and the sticky, milk colored latex sap collected and refined into a usable rubber. The purified form of natural rubber is the chemical polyisoprene, which can also be produced synthetically. Natural rubber is used extensively in many applications and products, as is synthetic rubber. It is normally very stretchy and flexible and extremely waterproof.
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天然ゴム.
natural rubber
natural rubber
crude natural rubber
人工芝.
人絹.
人造肥料.
a cosmetic made from natural ingredients
a dye essence obtained from a natural substance
a lawn-like carpet made of artificial fibers