Propylene,the common petroleum gas,is subject to gasification under heating and liquification under pressure.
丙烯是一种受热易气化、受压易液化的常用石油气。
Propylene,the common petroleum gas,is subject to gasification under heating and liquification under pressure.
丙烯是一种受热易气化、受压易液化的常用石油气。
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