Non-return Valve [机] 单向阀 ; [机] 止回阀 ; [机] 逆止阀 ; 切断式止回阀
ball non-return valve 球形止回阀 ; 单向球阀 ; 球形止逆阀
non return valve 止回阀 ; 逆止阀 ; 单向阀 ; 不回阀
stop check valve non-return valve 切断式止回阀
motorized non-return valve 电动止回阀
outlet non-return valve 出口止回阀
double non-return valve 双止回阀 ; 双向止回阀
The transfer line should be equipped with a non-return valve or other suitable alternative.
转移管线上须配备止回阀之类的装置。
Headstock piece on media flows and forces open or closed to prevent backflow valve media called a non-return valve.
启闭件靠介质流动和力量自行开启或关闭，以防止介质倒流的阀门叫止回阀。
First: to act as an automatic non-return valve by preventing a backflow of steam from the main steam header to the boiler.
首先，能过作为一个自动逆止阀，防止蒸汽从主蒸汽加热器上倒流到锅炉里。
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