Waste draining pipe, offlet or drain pipe should be connected to the main pipe;each pipe should connect two valves with the most possible short valve-to-valve pipe length.
排污
、放水或疏水
分别连接到各自的总上，每
串接两
，两
的段尽量缩短。
；疏水Waste draining pipe, offlet or drain pipe should be connected to the main pipe;each pipe should connect two valves with the most possible short valve-to-valve pipe length.
排污、放水或疏水分别连接到各自的总上，每串接两，两的段尽量缩短。
声明：以上例句、词性分类
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