the first test flight

基本解释

The engine cracked on the first test flight.
在首次试飞时，发动机发生裂纹。
The first test flight will be toward the end this year, according to André Borschberg, the chief executive of the project.
据本项目的首席执行官André Borschberg透露，”太阳动力号“的首次试航预计在今年年底。
The first test flight for NASA’s next-generation rocket rumbled closer when the Ares I-X rocket took a ride to its launch spot aboard a massive Apollo-era crawler Tuesday morning.
星期二上午，随着战神九号登上阿波罗时代威武雄壮的履带式运输车，朝发射现场挺进，美国宇航局新一代火箭的首飞号角越来越响。

Three astronauts were named for the first manned Apollo test flight: Virgil Grissom, Edward White and Roger Chaffee.

Although he has flown HB-SIA in a simulator, Mr Borschberg says he will not really know how it performs until the first test flight later this year.
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