出典:Wiktionary
出典:『Wiktionary』 (2025/10/25 23:35 UTC 版)
altimeter (plural altimeters)
出典:Wikipedia
出典:『Wikipedia』 (2011/06/11 21:16 UTC 版)
An altimeter is an instrument used to measure the altitude of an object above a fixed level. The measurement of altitude is called altimetry, which is related to the term bathymetry, the measurement of depth underwater.
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