The high-pressure liquid refrigerant through the expansion valve, because the expansion valve throttling pressure drop, the refrigerant into normal temperature low pressure liquid.
常温高压的液体冷媒流过膨胀阀，因为膨胀阀的节流作用压力降低，使得冷媒变成常温低压的液体。
If this liquid were heated to a high enough temperature to boil it under normal atmospheric pressure many of the hydrocarbons in it would decompose.
如果这些液体在通常的大气压下加热到足够的温度而沸腾，其中许多碳氢化合物会分解。
For instance, it needs much lower temperature that the normal liquid boiling point, low pressure, and very short time to be heated etc.
例如，蒸馏温度远低于液体沸点，蒸馏压强低，受热时间短等。
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