节流机构使制冷从高温高压液体进入蒸发器。
Throttle body made from high temperature and high pressure liquid into the evaporator of refrigeration.
其阀座的位置应保持淹没在波面以下，以防止高压气体冲进蒸发器。
The location of its seat should be kept submerged in the wave surface below to prevent high-pressure gas rushed into the evaporator.
高压气态制冷剂在冷凝器中向冷却介质放热被凝结为液态后，经节流装置减压降温进入蒸发器；
High pressure gas refrigerants in the condenser cooling medium heat to be setting for liquid, through the throttle device reduced pressure cooling into the evaporator;
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