| 释义 |
止回阀 zhǐhuífácheck valve止回阀【机】check valve止回阀phr.check valve【机】止回阀，单向阀止回阀1. [Mechanics] a check valve; a non-return valve止回阀back pressure valve; check valve; non-return valve止回阀check valve（hydraulic）止回阀check valve（pneumatic）止回阀non-return valve止回阀retaining v |