helical type hydraulic steering gear
螺旋式液压操舵装置
differential screw steering gear
差动螺旋式操舵装置
hydraulicefficiency steering telemotor
液压操舵遥控传动装置
after telemotor
后部液压遥控操舵装置
Napier's differential screw steering gear
内皮尔差动螺旋舵装置
hydrauliccontrol pitch propeller
液压操纵螺距螺旋桨
parallel ram steering gear
并列柱塞式操舵装置
non-follow-up type steering gear control
非随动式操舵装置控制
screw-operated jack.
螺旋装置操纵的起重器。
Electrical system design of electric and electrohydraulic steering gear in ships
GB/T14547-1993船舶电动和电动液压操舵装置电气系统设计
mounting of propeller by hydraulic jack
螺旋桨液压无键装配
double-opposed ram steering gear
双列对置柱塞式操舵装置
The steering gear of a ship, especially the tiller or wheel.
舵柄，舵轮船的操舵装置，尤指舵柄或舵轮
hydraulic gait-model all-auger drilling machine
液压步履式螺旋钻孔机
nonfollow up type steering gear contro
非随动式操舵装置的控制
Performance on the Orifice Energy Dissipation and Decompression Equipment of the Step and Spiral-orifice Style
阶梯螺旋孔口式孔板消能降压装置性能
built in controllable pitch propeller unit system
内装式可调螺距螺旋桨装置系统
opposed ram steering gear
对置活塞式电动液压舵机