After a thorough investigation, many experts now believe that the streak was a run-of-the-mill jet aircraft contrail.
经过彻底的调查，许多专家现在认为，这条轨迹是一条普通的喷气式飞机尾迹。
Today people and goods travel by jet aircraft and fast ships, and information is transmitted at the speed of light over the Internet.
人和货物通过喷气式飞机和快船来流动，而信息是通过互联网以光的速度传送。
Turbulence isn't dangerous to a jet aircraft but it is to the people in it.
对于飞机来说气流颠簸并不危险，但是对于飞机里的乘客来说可不是这样。
Turbulence isn't dangerous to a jet aircraft, but it is to the people in it.
对于飞机来说气流并不危险，但是对于飞机里的乘客来说可不是这样。
I don't like the noise of these jet aircraft, but I've learnt to live with it.
我厌恶这些喷气式飞机的噪音，但我已经学会去忍受它了。
The X-47B will be the first unmanned jet aircraft to take off and land aboard an aircraft carrier.
X-47B将是第一架在航空母舰上起飞并降落的无人机。
If you think what it must be like to share the deck of a ship with several squadrons of jet aircraft.
如果你能想像出和几个中队的喷气机同在一个甲板上是什么滋味儿的话。
And every year jet aircraft generate almost as much carbon dioxide as the entire African continent produces.
每年喷气式飞机产生的二氧化碳的量相当于整个非洲大陆产生的量。
Therefore, the RCS of forward and rear aspects may be modify by using a waveguide model for the calculation of RCS of jet aircraft.
这样，对于复杂的喷气式飞机目标，其机头和机尾的RCS值就可通过波导模型的模拟来修正。
The market for launching small satellites is presently only partly served by the Pegasus rocket, which is launched at high altitude by a commercial jet aircraft.
在小型卫星的发射这一市场，目前只有天马火箭公司提供一些服务。他们用商务喷气式飞机在高空进行发射。
Tsunamis travel as fast as jet aircraft in deep water, where they are spread over a far deeper water column and make for smaller and very gradual waves at the surface.
在深海水域，海啸的传播速度像喷气式飞机一样快，但在海面看到的波浪不大。
The 12-Month Moving Total Trends for both pre-owned business jet aircraft retail sale transactions and average asking price from January 2004 to September 2011 are illustrated in Chart A.
在图A中，展示了自2004年1月至2011年9月，以12个月为单位的二手喷气公务机零售成交量和平均询价信息。
The main shaft between the air compressor and the gas turbine in a jet aircraft engine is hollow to permit an internal speed reduction shaft with the minimum requirement of space and weight.
在喷气式飞机发动机内位于空气压缩和燃气涡轮之间的主轴是空心的，允许有一个需要最小空间和重量的内部减速轴。
The aircraft cost 25 million pounds and can carry heavier loads than huge jet planes while also producing less noise and emitting less pollution.
这架飞机造价2500万英镑，可以比大型喷气式飞机承载更重的载荷，同时产生更少的噪音，排放更少的污染。
Among BAE Systems’ plans, for example, is the co-operative control of drones, which would allow a pilot in a jet to fly with a squadron of the robot aircraft on surveillance or combat missions.
例如，作为“英国宇航系统公司”计划之一的无人机联合控制系统将使得喷气式飞机的飞行员在飞行过程中同时指派无人机分队执行侦查或战斗任务。
One example of such a striking shift was the changeover to jet engines in commercial aircraft.
一个这样鲜明变化的例子是在商业飞机上的喷气式发动机的转变。
So can other aircraft, such as helicopters or prop-planes that don't have jet engines, fly through these conditions?
那么其他的一些飞行器，比如说直升飞机，螺旋桨飞机，他们没有喷气式引擎，可以在这种条件下飞行吗？
The new trainers will prepare fast jet aircrew for flying front-line aircraft with a modern cockpit environment of digital displays sophisticated navigation and advanced avionics.
新的教练机将为前线飞行飞机配备快速喷气飞机空勤人员，以及数字显示的精密导航和先进航空电子设备的现代驾驶舱环境。
Flying at 15, 000ft in another aircraft that had bypassed the jet age, we saw a horizon of endless forests, mountains and snaking rivers, shaped by time and the forces of nature.
我乘上另外一架绕过了喷气时代的飞机，在15,000英尺的高度上俯瞰了无边无际的森林，群山和蜿蜒曲折的河流，这都是由时间和自然之伟力所造成。
Search aircraft have stepped up the hunt for an air France jet that disappeared over the Atlantic with 228 people on board.
搜救飞机正在加紧寻找在大西洋上空失踪的载有228人的法航飞机。
Last year, aircraft manufacturer Airbus patented a hybrid electric jet engine for airliners which can be powered by both conventional kerosene and electricity.
去年，飞机制造商空中客车为客机设计了一种混合动力喷气引擎，它可用常规的汽油或者电力提供动力，对此它还申请了专利。
The aircraft, known as HB-SIA, has the wingspan of a jumbo jet but just a tiny single-person cockpit.
这架名叫HB -SIA的飞机是一架有着巨大机翼的喷气式飞机，而其驾驶员座舱却只能容纳一人。
The big aircraft-engine-makers are exploring new ideas for jet engines.
巨大的飞机引擎市场正为喷气式飞机引擎开拓新的思路。
Other vehicles you should avoid driving while drunk include dirt bikes, ATVs, jet skis, go carts, snow mobiles, personal aircraft, helicopters and mopeds.
还有一些你应当避免醉酒驾驶的交通工具，它们包括，越野脚踏车，沙滩车，水上摩托车，单座赛车，滑雪车，私人飞机，直升机和机动自行车。
Instead of using wings, the coleopter employed a circular extension serving as the outer part of the jet engine while helping the aircraft achieve level flight, as well as vertical ascent and landing.
环翼机没有尾翼，而是采用一个延伸的圆形作为外部引擎，帮助飞机完成水平飞行和垂直起飞降落。
The Astrium vehicle would be about the size of a business jet and would take off from a standard runway, using normal aircraft engines to climb to about 12km.
Astrium公司的运输工具将使用和普通商业飞船大小相似并且将会从标准跑道起飞，使用普通的喷气飞机引擎用以爬升至12千米高度。
The Astrium vehicle would be about the size of a business jet and would take off from a standard runway, using normal aircraft engines to climb to about 12km.
Astrium公司的运输工具将使用和普通商业飞船大小相似并且将会从标准跑道起飞，使用普通的喷气飞机引擎用以爬升至12千米高度。
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