Therefore in the refrigerant liquid pipe must be installed before the filter drier.

因此在冷媒供液管前必须装设干燥过滤器。

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The improvement of producing techniques of zinc drier can reduce the amount of liquid waste and less pollute the water.

锌催干剂通过改进生产工艺，废水的排放量少，水质基本无污染。

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