... condensate return flow 冷凝液回流 Condensate return equipment 冷凝回流设备 condensate return piping 冷凝回水管路 ...
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Keep return piping valve closed until trap fills with condensate. Slowly open valve.
保持回路管道阀门处于关闭状态直到疏水阀充满冷凝物为止。慢慢开启阀门。
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