ball screw-jack滚珠螺旋致动器;详细翻译
screw gate jack螺旋机门油缸
differential screw-jack差动螺旋千斤顶;翻译;差动螺旋千斤;详细翻译
screw w jack螺旋起重器
screw w jack prop螺旋千斤顶支柱
Screw base jack调节底座
Screw-jack绞盘;[机] 螺旋起重器
bar-screw w jack棒形千斤顶
jack-screw screw jack起重螺旋
N（名词） a lifting device utilizing the mechanical advantage of a screw thread, the effort being applied through a bevel drive 千斤顶 (Also called jackscrew, jack)