valve return port 气门回流孔
vent valve return oil 通风阀回油
Non-return Valve [机] 单向阀 ; [机] 止回阀 ; [机] 逆止阀 ; 切断式止回阀
diverter valve return line 分流器阀回油管路
relief valve return oil line 安全阀回油管线
pressure reducing valve return port 减压阀回油孔
pressure reducing valve return spring 减压阀回位弹簧
relief valve return pipe 安全阀回油管
Objective: To explore the effect on cardiac light murmur and cardiac tricuspid valve return flow in normal children.
目的：探讨正常儿童心脏轻度杂音与瓣膜返流的相关性。
A check valve should be installed on return piping if there will be a pressurized return line or the trap drains to an overhead return line (Fig. B).
如果存在一个压力回路，或者疏水阀排放口位于回路管道的上方，则应该安装一个止回阀(图b)。
The construction and working principles of speed sensor, ABS ECU, electromagnetic valve and return liquid pump are analysized in detail.
深入探讨了轮速传感器、防抱死制动电子控制器、电磁阀、回液泵的结构组成与工作原理。
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