This height is also the frequent cruising altitude of commercial airliners.

这一高度也是商务航线的常用巡航高度。

youdao

Height: the altitude of your observing site above the mean sea-level, in meters.

海拔：你的观测地点的海拔高度，单位是米。

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Report heading and altitude (height).

报告航向和高度。

youdao

Report heading and altitude (height).

报告航向和高度。

youdao