Almost all modern missiles are propelled by rocket or jet engines and have guidance mechanisms, usually including sensors, to help the missile find its target.

Sixty years later just about anyone could set a personal mile record-with help from a couple of jet engines strapped to their back.

六年后，如果将若干个喷气式发动机绑在背后的话，几乎任何人都能打破这一英里赛跑记录。

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Jet engines handle so much air that pressurization supplies can be bled from them under great pressure, and already very hot.

喷气式发动机处理如此多的空气以至于增压供给在高压的状态下会泄漏空气，并且温度很高。

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This paper bring forward a control scheme which can decide to start the direct lateral force scheme and fire up those jet engines each at what time.

本文提出了一种何时启动直接侧向力的控制方案，决定什么时候对姿态喷流发动机进行点火。姿控发动机有很多个，到底对那个喷流发动机点火呢？

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This research may ultimately lead to modifications of jet engines to make them quieter as they fly over neighborhoods.

这一研究也许最终会导致改进喷气发动机，使之在飞行中变得更为安静。

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Super alloys cobalt, titanium and chrome are used in such specialised engineering manufacturing as jet engines.

而超合金钴、钛和铬则用于飞机引擎等特种工程制造行业。

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considered essential for speedy analysis of tasks as varied as placing web ads and maintaining jet engines.

这些产品被认为有至关重要的意义，可用于对各种任务开展高速分析，包括投放网络广告和维护喷气机引擎。

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A craft capable of moving over water or land on a cushion of air created by jet engines.

能过通过由喷气机制造的气垫在水中或陆地运动的船。

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This factory produces jet engines, with which the most modem aircraft are equipped.

这个工厂生产喷气发动机，用来装备最现代化的飞机。

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Powered flight; ( often used in combination; kerosine-powered jet engines).

动力飞行；（常用于复合词；油动的喷气式发动机）。

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Dad was a supervisor in a company that serviced jet engines.

爸爸是一家为喷气式飞机引擎提供服务的公司的主管。

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A plane propelled by two jet engines.

用两个发动器推动的飞机。

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Study and Discussion on Projects of Combined Air-Breathing Jet Engines for Earth/ Orbit Space Transportation System

天地往返运输系统空气喷气组合式发动机方案探讨

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Numerical computations of infrared signatures in exhaust flow fields of jet engines

发动机燃气喷流红外辐射场的数值模拟

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Trend analysis of jet engines is an analytical technique widely used in engine performance monitoring.

航空发动机状态的趋势分析，是一种广泛地应用于航空发动机性能监控的分析技术。

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Experts say volcanic ash can cause problems for jet engines.

专家称，火山灰可能造成飞机引擎故障。

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The US scientists have found a way of converting food rubbish into a highly powerful paraffin suitable for jet engines.

美国的科学家们发现了一种方法，可以将食物垃圾转化成一种适合喷气式发动机的高能煤油。

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Application of Reflected Light Microscope to Identification of Gold and Silver Jewellery and Gemstone

反光显微镜在金银饰品与宝石检测中的应用

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If you prefer a different gemstone, there are many other wonderful choices.

如果你喜欢不同的宝石，还有很多其他美好的选择。

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Burma gemstone resources exploration and Yunnan mining industry

缅甸宝玉石资源的勘查开发与云南地矿业

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If you want a healing gemstone, you may wish to consider one of these.

如果你想有一个愈合的宝石，你不妨考虑其中之一。

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