A jack operated by a screw.
螺旋起重机，螺旋千斤顶由螺旋杆运作的起重机
screw-operated jack.
螺旋装置操纵的起重器。
telescopic-swivel crane
伸缩-旋转式起重机
level luffing crane
平行运送旋臂起重机
To coil or fold or cause to coil or fold in overlapping whorls.
卷绕（使）盘绕起来或（使）卷起成重叠的螺旋状物
Deformation analysis on cantilever screw conveyer shaft based on method of dynamic double barycenters
基于动态双重心法的悬臂螺旋输送机螺旋轴的变形分析
mechanical controllable pitch propeller
机械式可调螺矩螺旋桨
A backward flow of air, as from the propeller of an aircraft.
喷气流向后流动的空气，如由飞机的螺旋浆引起
An airplane having such a propeller.
螺旋桨飞机有这样一种螺旋桨的飞机
Nutritional intervention of Organic Spirulina on weightlifters
有机螺旋藻片对举重运动员营养干预的研究
gantry crane with slewing man-trolley
带司机小车的旋臂龙门起重机
screw-conveyor type centrifugal
螺旋输送机式离心机
(h) rigging and use of ship's derricks;
（ｈ）船舶旋臂起重机的装配和使用；
Improned Proposal of 40/10 Ton Crane;
40/10t旋转吊钩桥式起重机的改造方案
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。
the raised helical rib going around a screw.
绕着螺丝的凸起的螺旋状的肋纹。
An infection or a disease caused by a treponema.
密螺旋体病一种由密螺旋体引起的感染或疾病
