Because of security concerns, most manufacturers in different countries have abandoned the acetylene method, but use the butadiene method.

出于安全考虑，许多国家已放弃了乙炔法，而采用丁二烯法生产氯丁橡胶。

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Because of security concerns, most manufacturers in different countries have abandoned the acetylene method, but use the butadiene method.

出于安全考虑，许多国家已放弃了乙炔法，而采用丁二烯法生产氯丁橡胶。

youdao