Unmanned aerial vehicles, too are seen by executives as a rich area for development.
无人飞行器也被公司高管们看作开发的沃土.
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太空飞行期间, 宇航员接受一种强化养生法锻炼,以期防止骨损和肌损.
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Tap water filters trickled down from NASA's need to cleanse water on long space flights.
非蒸馏水净化器是NASA考虑到长途太空飞行中对水的净化的需要而开发的.
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He also published two important scientific theories that were later confirmed by space flights.
他也发表了两个被后来的太空飞行所验证的重要的科学推测.
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The files blame other UFO sightings on weather balloons, clouds or normal aircraft.
有一些文件把其它的UFO目击事件归因为气象探测气球 、 云彩或正常的飞行器.
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Workers in the " dirty room " must wear air suits much like space suits.
在 “ 非洁净室 ” 中工作的人都必须穿上像宇宙飞行衣那样的安全衣.
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The stewardesses are trained to resolve every problem which arises in flight.
空中小姐接受应付飞行中所产生每一种问题的训练.
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Jonathan is bummed when his instructor says, " Let's begin with level flight. "
但是他失望了,因为他的老师告诉他 “ 我们从水平飞行开始 ”.
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Everyone on board saw it and everyone thought, " UFO " Unidentified Flying Object.
机内的人都目睹这一景象,大家都认为这就是不明飞行物.
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A movie sequence of a UFO was reportedly filmed on Easter Sunday an unidentified witness.
电影序列的不明飞行物据说拍摄时间:复活节星期日的一个身份不明的证人.
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