浮動(dòng)雙向活門 check valve: 【機(jī)械工程】止回閥，單向活門。 check valve; back-pressure valve: 單向閥control valve to check valve pipe: 控制閥至止回閥管non-return valve(check valve): 逆止閥swing check valve, flacheck valve: 旋啟式止回閥下載手機(jī)詞典可隨時(shí)隨地查詞查翻譯
