尽管后冷却器将水蒸气冷凝成液体使温度降低，但因以下两个原因从后冷却器出来的气流仍然可以看见液态水。
Although after cooler will water vapor condensation into a liquid make temperature decrease, but for the following two reasons from after cooler out air can still see the liquid water.
冷冻式空气干燥器通过降低压缩空气的温度至接近水的凝固点，使多余的水蒸气凝结成液体水，从而与气流分离。
Frozen type air dryer by lowering the temperature of compressed air to close to the freezing point of water, that extra water vapor condense into liquid water, thus and flow separation.
所述喷管具有朝金属表面引导液体制冷剂流和蒸气流的罩盖。
The lance has a hood that directs both a flow of liquid cryogen and a flow of vaporous gas toward the metal surface.
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