turning vane steering gear

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