... 排水吨数 displacement tonnage; 排水阀 draw off valve; 排水干沟 main drain; ...
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draw-off valve 排水阀 ; [机] 泄水阀 ; 排污阀
Inlet valve and draw-off valve 进水阀
draw-off f valve 排水阀
Implements by the relay to the electric motor, the inlet valve, draw-off valve's control.
由继电器实施对电动机、进水阀、排水阀的控制。
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