短語詞組短語clack k valve 瓣閥wing clack check valve 翼瓣止回閥pressure clack valve 壓放閥air inlet clack valve 進(jìn)氣瓣閥;進(jìn)氣活門ball clack valve 球瓣單向閥valve clack 閥瓣;閥瓣英語;翻譯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