垂直起飞飞机是一种能竖直地离地升空的飞机。
A a vertical takeoff aircraft is one that can rise straight from the ground.
垂直起飞的飞机，不用助跑就可直接从地上升起。
A vertical take-off aircraft can rise straight from the ground, without running along for some distance.
在限定的时间内，参赛队伍必须让他们的飞行器垂直起飞，成功地控制飞行和降落，然后返回。
Against a tight timeline, the teams must prepare their vehicles to make vertical take-offs, controlled flights and successful landings-and then hop back home again.
由降落区内将直升机垂直起飞，保持稳定的上升速度，上升的过程中允许轻微的横向偏移。
The take-off should be performed straight up from the landing area, at a constant rate of climb, with little lateral deviations.
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。
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.
大量实测数据计算结果证实，该箭体漂移的运动学模型是可靠的，很好地刻画了火箭在垂直起飞段漂移量的变化规律。
A large amount of practical measurement and calculated drift data of rocket shows that the models are suitable for describing and analyzing drift of rocket in takeoff phase.
当飞机垂直起飞时，飞马发动机前后四个喷管转到垂直向下的位置，在喷气反作用力的作用下产生向上的推力，使飞机垂直上升；
When the plane tries to take off vertically, the Pegasus engine's four jettube will turned to face the ground so that the whiff will raise the aircraft.
对垂直起飞两级入轨的并联两机的分离问题，提出了研究模型并作了具体分析，着重提出了实现两机安全分离需要解决的技术难点。
The analytical model of separation is presented for the parallel Space Shuttle system with the perpendicular launch. Meanwhile, the important problems of the secure separation are presented.
例如，鸟类的体型越小，飞行动作就越灵敏——天鹅就需要两个足球场大的面积才能完成起飞和抬升动作，而蜂鸟就可以像直升机一样垂直起飞。
The smaller the bird, for example, the more agile the flying — a swan may need the equivalent of two football fields to take off and get lift, while a hummingbird can rise like a helicopter.
例如，鸟类的体型越小，飞行动作就越灵敏——天鹅就需要两个足球场大的面积才能完成起飞和抬升动作，而蜂鸟就可以像直升机一样垂直起飞。
The smaller the bird, for example, the more agile the flying — a swan may need the equivalent of two football fields to take off and get lift, while a hummingbird can rise like a helicopter.
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