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单词 altimeter
释义 altimeter
A device used to measure height above sea level. It usually consists of an aneroid barometer measuring atmospheric pressure. Aircraft are fitted with altimeters, which are set to the atmospheric pressure at a convenient level, usually sea level, before take off. The height of the aircraft can then be read off the instrument as the aircraft climbs and the pressure falls
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更新时间:2025/6/23 1:18:19