Propylene,the common petroleum gas,is subject to gasification under heating and liquification under pressure.
丙烯是一种受
化、受压液化的常用石油。
Propylene,the common petroleum gas,is subject to gasification under heating and liquification under pressure.
丙烯是一种受化、受压液化的常用石油。
Oil is cracked by heating under pressure.
石油在一定压力下加
解。
Wood blocks may compress a great deal under pressure.
木块受压时可缩小很多。
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