prototype flight test

基本解释

A Ho 2-29 prototype made a successful test flight just before Christmas 1944.
就在 1944年聖誕節前 Ho 2-29原型完成了一次成功試飛。
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.
他希望今年能進行太陽能飛機樣機的試飛，然後明年在瑞士上空進行全夜間飛行。
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.
本文依據飛行模擬器對其運動模擬系統運動性能的要求，對飛行模擬試騐樣機電控部分進行了改造。

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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