... piston-actuated valve 活塞驱动阀 open and close valve 开闭阀 multiple-seated valve 多级座阀 ...
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并设前端装记忆合金检测器与上拨叉配合的开闭阀。
Open and close valve is equipped for front-end memory type alloy detector and upper shifting fork.
根据冷凝器中凝结液体量的变化调节蒸发器供液，由浮球操纵开闭的制冷剂流量控制阀。
According to the liquid condensed in the condenser changes the amount of conditioning evaporator for the liquid, the float control the opening and closing the refrigerant flow control valve.
当由于某种原因使输送液体管路中的调节阀迅速开闭，就可能引起水击，对设备和管道造成损坏。
The control valves in liquid pipelines shutting or opening fast due to some causes may result in pressure surge, which is dangerous to equipment and pipelines.
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