lifting screw [机] 起模螺钉 ; 升降丝杠 ; 螺旋起重器 ; 千斤顶
lifting screw rod 升降螺杆
key brick lifting screw 键升降螺杆
screw lifting support 螺旋杆式升降支架
screw gate lifting device 螺旋式闸门启门机
lifting-line theory of screw propeller 螺旋桨升力线理论
lifting cord screw 升降螺杆
With the main blade lifting screw, nut structure, stable and reliable.
主锯片升降采用螺杆，螺母结构，平稳可靠。
The lifting capacity of this chain hoist (hydraulic jack, screw jack) is 5 tons.
这个倒链（油压千斤顶、螺旋千斤顶）的起重能力为 5 吨。
The lifting capacity of this chain hoist ( hydraulic jack , screw jack ) is 5tons.
这个吊链（油压千斤顶、螺旋千斤顶）的起重能力为5吨。
应用推荐