这意味着联邦航空局可以暂停维珍银河的飞行许可。
That means that the FAA could suspend Virgin Galactic's license to fly.
1969年在尼克松的授权下,航天飞机获得了飞行许可。
Authorised by Richard Nixon in 1969, the shuttle was a flying compromise.
我们聘请了军事和测试飞行员来操纵,必须得到特殊飞行许可。
We hire military and test pilots to do the maneuvering. We have to get special flight clearance.
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