A check valve is a mechanical valve that only permits water flow in one direction.
检查阀(单向阀)是一个手动阀门，这样水只能往一个方向走。
The spring return pneumatic actuators use an air supply to drive the valve stem in one direction and an internally loaded spring to return to the valve to its original position.
春季返回气动执行机构使用的空气供应，以推动一个方向阀杆和一个内部装载弹簧返回到原来的位置阀门。
Check valve before the valve is to use the pressure after poor hoist the automatic valve, it is the role of the media flows only in one direction, reverse and stop its flow.
止回阀是利用阀前阀后的压力差而自动启闭的阀门，它的作用是使介质只做一个方向的流动，而阻止其逆向流动。
A hinged valve that permits fluids to flow in only one direction and clacks when the valve closes.
一种铰接的阀，只容许流体单向流动，关闭时发出卡嗒声。
As the piston travels in one direction, through a one way valve, it draws in the refrigerant gas from the low pressure side of the circuit.
活塞向一个方向移动时，环路中低压端的气态制冷剂通过一个单向阀，循环中低压端的气态制冷剂被吸入进来。
Welding type high pressure check valve is only allowing media to flow in one direction, and stop the flow direction.
焊接式高压单向阀只允许介质向一个方向流动，而且阻止方向流动。
And he called it a valve because it would only allow current to pass in one direction...
他称它为真空管，因为它只能让电流通过一个方向。
The check valve avoids refluence of air in pipe - lines and consequent pressure loss in which compressed air is intended to flow in one direction only.
单向阀能防止管路中的空气回流，以及随之而来的因压缩空气朝这一方向流动而产生的压力损失。
The check valve avoids refluence of air in pipe - lines and consequent pressure loss in which compressed air is intended to flow in one direction only.
单向阀能防止管路中的空气回流，以及随之而来的因压缩空气朝这一方向流动而产生的压力损失。
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