Radar altimeters are used in aircraft to indicate height above the ground of sea.雷达高度表用以指示飞机相对于地面或海平面的高度.The parachute caps and altimeters must be wore, and parachute opener must be brought skydiving.参加跳伞比赛人员必须戴伞帽 、 佩带高度...

altimeters的音标：...

n.高度计( altimeter的名词复数 )...