由各种比例苯乙烯、丙烯腈和丁二烯组成的一类热塑性合成共聚物。
A type of thermoplastic synthetic copolymer composed of various proportions of styrene, acrylonitrile and butadiene.
此方法也用于包含两种或两种以上单体的系统(共聚)，例如苯乙烯和丁二烯。
This method is also applicable to systems involving two or more type of monomers (copolymerization), for example, of styrene and butadiene.
合成橡胶是丁二烯（75％）和苯乙烯（25％）的共聚物。
Synthetic rubber is a copolymer of butadiene (75%) and styrene (25%).
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