短語詞組短語rotating frozen seal 旋轉(zhuǎn)軸冷凍密封spring rotating mechanical seal 彈簧旋轉(zhuǎn)式機(jī)械密封rotating shaft seal 回轉(zhuǎn)軸密封;轉(zhuǎn)軸密封rotating g seal ring 旋轉(zhuǎn)密封環(huán)rotating mechanical seal 旋轉(zhuǎn)式機(jī)械密封spring rotating machanical seal [機(jī)]彈簧旋轉(zhuǎn)式機(jī)械密封rotating bearing seal 轉(zhuǎn)動(dòng)軸承密封rotating shaft seal with lip 帶塵罩的軸密封rotating seal ring 旋轉(zhuǎn)密封環(huán);動(dòng)密封環(huán);動(dòng)環(huán) 返回 rotating seal