The nineteenth century witnessed a revolution in ship design and propulsion.
19世纪经历了船舶设计和推进上的一次重大变革。
您是否缺乏推进力？
But magnetic propulsion has some drawbacks.
但是磁力推进有一些缺陷。
This aircraft works by jet propulsion.
这架飞机是喷气推进的。
This aircraft works by jet [propulsion].
这架飞机是喷气推进的。
The project is managed by NASA's Jet Propulsion Laboratory.
该项目由NASA喷气推进实验室管理。
The lift is a Schindler with original propulsion equipment.
本机是一部迅达，带有原装驱动设备；
Call it the Jet Propulsion Laboratory's version of the Final Four.
这四个登陆点的选择被称为喷气推进实验室版的终极四强赛。
This is the basic principle behind electromagnetic propulsion.
这是电磁推进力的基本原理。
New propulsion plants providing a 25% increase in available energy.
新的推进工厂为可用能源提供25%的增长。
Interest in jet propulsion was now growing at the Air Ministry.
航空部对喷气推进的兴趣正在增加。
The front roll (active roll)realizes automatic track-propulsion;
前辊（活动辊）实现自动跟踪推进；
Electrical rocket engine is a new type of space propulsion system.
电火箭发动机是一种新型的空间推进装置。
In 1939 the turbojet brought an entirely new method of propulsion.
1939年，涡喷发动机引入了一种全新的推力方法。
The hydrogen propulsion system will be the key to Phantom Eye's success.
氢推进系统将是幻影眼成功的关键。
He is not aware of another electric propulsion system designed for CubeSats.
他并不熟悉另一项为立方体卫星设计的电力推进系统。
What You'll Learn: What will make up the future of rocket-propulsion systems!
你将学习：火箭推进系统的未来走向。
A vehicle propulsion system and a method of its operation are described.
描述了车辆推进系统和操作该车辆推进系统的方法。
At first sight the idea of propulsion without propellant seems impossible.
乍一看，无工质电磁推进似乎是不可能。
The electric propulsion for train ferry is the first of its kind in china.
渡船为我国首次采用电力推进的滚装船铁路轮，柴油发电机组是渡船动力装置的核心。
The propeller takes much important place in the electric propulsion system.
螺旋桨作为推进器在电力推进系统中占有重要地位。
Finally, some new types of electric propulsion in the future are described.
最后简述未来几种新型电推进的方案。
The drive wheels then rotate as necessary, to achieve both balance and propulsion.
然后驱动轮按需转动，同时实现平衡和推进。
Operating process of thrust chamber in spacecraft propulsion system is studied.
研究了飞船推进系统推力室工作过程。
In some cases, the propulsion system's ability of quick response is also required.
在某些航天器中，也需要推进系统的快速响应能力。
The technical analysis and appreciative method of the electrical propulsion system;
本文列出了某船电力推进系统的几个投标方案。
A naval ship electric propulsion unit is a complex ship-machine-electricity system.
舰船电力推进是一个复杂的船—机—电系统。
Responsible for project propulsion, project quality and team performance management;
负责项目推进，项目质量和团队管理；
Responsible for project propulsion, project quality and team performance management;
负责项目推进，项目质量和团队管理；
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