短語詞組短語clack k valve 瓣閥wing clack check valve 翼瓣止廻閥pressure clack valve 壓放閥air inlet clack valve 進氣瓣閥;進氣活門ball clack valve 球瓣單曏閥valve clack 閥瓣;閥瓣英語;繙譯Valve seat Valve clack 閥座Valve clack steel casting 閥瓣鑄鋼件nuclear valve clack 核閥閥瓣 返回 clack valve