1)automatic slip elevator,自动卡瓦式吊卡2)slip-elevator,卡瓦式吊卡3)automatic hanger,自动吊卡4)power slips,自动卡瓦5)automatic power slips,自动(动力)卡瓦6)unclamped elevator,开式吊卡
用法例句
The existing drifting device is still used in the new system,but an automatic hanger and a power slip are used to replace the previous two sets of hangers.
