基本解釋n.止回閥同根派生 checkvalve相關(guān)詞英漢例句THE STRUCTURE LENG OF DOUBLE FLANGE JOINT BUTTERFLY VALVE AND DOUBLE FLANGE JOINT BUTTERFLY TYPE CHECKVALVE 雙法蘭連接蝶閥和雙法蘭連接蝶式止回閥結(jié)構(gòu)長度Valves;fittings;faucet;etc.;Ballvalve;Bibcock;anglevalve;Checkvalve;Gatevalve;Sanitareyware; 三角閥;其他水暖五金;水暖五金;水嘴;水龍頭;choker checkvalve 阻氣單向閥checkvalve更多例句