| 单词 | natural rubber |
| 释义 | > as lemmasnatural rubber natural rubber n. rubber or rubber latex obtained from a plant, in contrast to synthetic rubber. ΘΚΠ society > occupation and work > materials > raw material > rubber > [noun] caoutchouc1775 rubber1776 Indian rubber1783 gum elastic1803 India rubber1812 natural rubber1862 latex1900 1862 Sci. Amer. 22 Nov. 323/1 By the action of the heat the sulphur unites with the india-rubber, forming a new compound, possessing the elasticity of the natural rubber, but entirely devoid of its stickiness. 1912 Jrnl. Soc. Chem. Industry 15 July 617/1 There can now be no doubt that rubber may actually be obtained synthetically by the polymerisation of isoprene and its homologues and that the synthetic product really is rubber and strictly comparable with natural rubbers. 1990 Hindu (Madras) 25 Jan. 17/5 Natural rubber tapped from rubber trees, accounts for a third of the elastomer used in everything from vehicle tyres to shoes. < as lemmas |
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