1.The planes were certified airworthy.
1.飞证适。
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1.And if it's airworthy, the aircraft is safe.
如果是,那么它就是安全。
2.Last year the U.S. Federal Aviation Administration certified the Terrafugia Transition as airworthy.
去年,美国联邦空管理局为特拉弗吉亚汽车颁发了证。
3.An airplane undergoes a number of key checks before a flight, so a technician needs to provide airworthy approval to the pilots before they are cleared to commence operations.
行前要进行多项关键检查,因此技术人员需要行员获准开始运营之前向他们提供许可。机翻
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