Propylene,the common petroleum gas,is subject to gasification under heating and liquification under pressure.
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.
一种受热易气化、受压易液化的常用石油气。
Oil is cracked by heating under pressure.
石油在一定压力下加热
解。
Wood blocks may compress a great deal under pressure.
木块受压时可缩小很多。
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