（指飞机或飞行员）着陆；
测高仪，高度计一种测量高度的仪器，尤指飞机中的无。
An instrument for determining elevation, especially an aneroid barometer used in aircraft that senses pressure changes accompanying changes in altitude.
将（交通工具，尤指飞机）借助其本身的力量交付给最终的使用者。
End user: The person or organization who will directly use a particular set of information or a device.
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