The different effects of shock wave, gas expansion pressure, reflected extension wave are put forward.
提出了冲击该、气体膨胀压和反射拉伸波在破岩过程中各自所起的不同作用。
A rise in the temperature of the gas results in its expansion.
气体温度上升致使气体膨胀。
Free expansion of a gas causes it to cool.
气体的自由膨胀会使其温度降低。
Free expansion of a gas causes it to cool.
气体的自由膨胀会使其温度降低。
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