最終更新日：2024/07/29
(aviation) An instrument that measures the speed of an aircraft relative to that of sound and displays it in Mach numbers.
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Machmeter
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(aviation) An instrument that measures the speed of an aircraft relative to that of sound and displays it in Mach numbers.
Machmeter
DiQt（ディクト）
無料
★★★★★★★★★★
