汽门 meaning in English

porthole
steam port
valve

Products oil seals special seal valve stem seal
产品介绍油封-密封件特殊油封汽门油封
Valve seat grinding wheels : marking " vlvst
汽门座砂轮：统一标示vlvst
Specification for aircraft tyre valves : interchangeability dimensions
飞机轮胎汽门嘴规范:互换性尺寸
Oil tempered chromium - vanadium valve spring quality wire and springs
油回火铬-钒汽门弹簧优质钢丝和弹簧
Variable - valve - timing system . v . t
可变汽门正时系统

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