英语词汇“gamma-ray altimeter”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	gamma-ray altimeter
释义	gamma-ray altimeter gamma-ray altimeter [′gam·ə ‚rā al′tim·əd·ər] (engineering) An altimeter, used at altitudes under several hundred feet, that measures the photon backscatter from the earth resulting from the transmission of photons to earth from a cobalt-60 gamma source in the plane.
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