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单词
sonic altimeter
释义
sonic altimeter
sonic altimeter
[
′sän·ik al′tim·əd·ər
]
(engineering)
An instrument for determining the height of an aircraft above the earth by measuring the time taken for sound waves to travel from the aircraft to the surface of the earth and back to the aircraft again.
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deadness
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dead nuts on
dead of
dead of night
dead of night/winter
dead of night/winter, the
dead of the night
dead of winter
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更新时间:2026/2/27 15:02:22