对航天飞机的雷达追踪，如最后精确的陆基导航，还没有开始。
Radar tracking of the shuttle, like the final accurate ground-based navigation, had not yet begun.
他们学习飞机设计，导航，无线电通信及安全。
They learn about everything from aircraft design and navigation to radio communications and safety.
当接近地面时，飞机突然失去控制导航系统也停止工作。
As it neared the ground, it lost power. Its navigation system stopped working.
一种向飞机发送特殊导航信号的无线电传送装置。
A radio transmitter that emits a characteristic guidance signal for aircraft.
用于导航，指引，和性能计算的飞机计算机。
An airplane computer used for navigational, guidance, and performance computations.
她是一个有资格靠仪表导航的飞行员，拥有自己的私人飞机，也是一个水肺潜水教练。
She is an instrument rated pilot with her own plane and a scuba instructor.
她是一个有资格靠仪表导航的飞行员，拥有自己的私人飞机，也是一个水肺潜水教练。
She is an instrument rated pilot with her own plane and a scuba instructor.
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