“水阀”造句

水阀的流向要与管路流向一致.
Steam trap flow direction in accordance with that of the pipe line.

水阀是如何知道何时开启何时关闭?
How does the steam trap know when to open and close?

圆盘式疏水阀适用于高压差的蒸汽主管线,蒸汽管网的阻汽疏水.
Disk type steam traps are for high pressure steam pipe lines.

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