Read Edit View history 底阀 dǐfá foot valve Origin Definitions Defs Strokes Stroke Words Sentences Sents 底阀 底閥 dǐfá foot valve bottom valve or foot valve, typically used at the bottom of a pump suction pipe to prevent backflow
底阀 底閥 dǐfá foot valve bottom valve or foot valve, typically used at the bottom of a pump suction pipe to prevent backflow