screw-operated jack.
螺旋装置操纵的起重器。
Napier's differential screw steering gear
内皮尔差动螺旋舵装置
differential screw steering gear
差动螺旋式操舵装置
helical type hydraulic steering gear
螺旋式液压操舵装置
built in controllable pitch propeller unit system
内装式可调螺距螺旋桨装置系统
controllable pitch propeller transmission
可调螺距螺旋桨传动pitch propeller unit可调螺距螺旋桨装置
propeller governor drive
螺旋桨节距调节器传动装置
adjustable screw type steering gear
可调整式螺旋型转向装置
Study on the automatic cutting device for ship propeller entanglement
船舶螺旋桨缠绕物自动切割装置研究
Manufacturing and Forming Technology of the Blade of a Screw Conveyer
螺旋输送装置叶片的制造及成形工艺
On the Improvement of the Emergency System for the CPP of a Vessel
某船可调螺距螺旋桨推进装置应急系统改进
Study on Horizontal Spiral Device for Aerobic Dynamic Composting;
卧式螺旋式污泥好氧动态堆肥装置试验研究
Application of Podded Electric Propulsor and Research on the Propeller Design;
吊舱电力推进装置及其螺旋桨设计研究
The Development of the Control System of the Intensity Modulated Spiral-Multi-Tomotherapy Equipment;
多层螺旋调强放疗装置控制系统的研制
Research of the Anti-blocking Equipment with Two-way Helix Reamer for a Wheat No-tillage Drill
小麦免耕播种机双向螺旋刀防堵装置的研究
EXPERIMENTAL INVESTIGATION OF A HORIZONTAL AXIAL TIDAL CURRENT ENERGY CONVERSION SYSTEM
水平轴螺旋桨式潮流能发电装置的试验研究
Application of spiral plate heat exchanger in visbreaker and FCC unit
螺旋板式换热器在减黏裂化和FCC装置上的应用
Development of Conical Spiral Groove Aerodynamic Bearings Experimental System
圆锥螺旋槽气体动压轴承实验台装置研制