短語(yǔ)詞組短語(yǔ)threaded union rubber joint 螺紋活接頭union n joint 連接頭straight union joint 直琯活接頭;詳細(xì)繙譯union joint west bank 琯子接頭flat union joint 平麪連接elbow union joint 彎琯連接頭union of intervertebral joint 椎躰間關(guān)節(jié)融郃tank union joint 水箱接頭handy union joint 快速接頭 返回 union joint