1·By 1964 synthetic rubber made up 75% of the market.
到1964年的时候，合成橡胶占美国市场的75%。
2·Chemists discovered how to make synthetic rubber.
化学家发现了制造合成橡胶的方法。
3·This is used to make the synthetic rubber in car tyres.
它常用以制造汽车轮胎的合成橡胶。
4·Isoprene needs to be extremely pure to make synthetic rubber.
而异戊二烯必须极其纯净才能生产出合成橡胶。
5·Synthetic rubber latex is made by emulsion polymerization.
合成橡胶胶乳由乳液聚合制成。
6·It specialises in designing and testing synthetic rubber compounds.
它专门从事设计和测试合成橡胶封口胶。
7·Synthetic rubber has substituted natural rubber in many fields.
合成橡胶在许多领域取代了天然橡胶。
8·Isoprene can also be artificially polymerised to make synthetic rubber.
异戊二烯也可以通过人工聚合来制造合成橡胶。
9·Sole is wear-resistant skidproof and high-density synthetic rubber.
大底部采用耐磨、高密度进口合成橡胶，具有耐磨止滑性。
10·Synthetic rubber is a copolymer of butadiene (75%) and styrene (25%).
合成橡胶是丁二烯（75％）和苯乙烯（25％）的共聚物。