prototype flight test

基本解释

A Ho 2-29 prototype made a successful test flight just before Christmas 1944.
就在 1944年圣诞节前 Ho 2-29原型完成了一次成功试飞。
He expressed the hope that this can be solar-powered aircraft flight test prototype, and then over the next year in Switzerland to carry out the whole night flying.
他希望今年能进行太阳能飞机样机的试飞，然后明年在瑞士上空进行全夜间飞行。
cid-25f35e9067c8dc09.spaces.live.com
In accordance with flight simulator's demand of motion simulation system motion performance, the electro-control part of flight simulation test prototype is reconstructed in this paper.
本文依据飞行模拟器对其运动模拟系统运动性能的要求，对飞行模拟试验样机电控部分进行了改造。

Like Amazon, the company is secretive, but last September it revealed that it had lost an unmanned prototype vehicle during a short-hop test flight.
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