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    mach

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    Mach

    Longman Dictionary of Contemporary English 5++朗文当代英语 5++LDOCE 5++朗文 5++Mach /mæk $ mɑːk/ noun [uncountable]  a unit for measuring speed, especially of an aircraft, in relation to the speed of sound. Mach 1 is the speed of sound, Mach 2 is twice the speed of sound etc 马赫，马赫数〔速度单位，尤用于计算飞行速度，一马赫等于音速〕 a plane with a maximum speed of Mach 3 最大飞行速度为3马赫的飞机
    Examples from the Corpus
    Mach• The plane can sustain a speed of Mach 3, or three times the speed of sound.    Origin Mach (1900-2000) Ernst Mach (1838-1916), Austrian scientist
    Mach nounChinese
    of for speed, measuring an aircraft, Corpus especially a in unit


    Mach
    Mach /mæk $ mɑːk/ noun [uncountable]
     Date: 1900-2000
     Origin: Ernst Mach (1838-1916), Austrian scientist
    a unit for measuring speed, especially of an aircraft, in relation to the speed of sound. Mach 1 is the speed of sound, Mach 2 is twice the speed of sound etc:
        a plane with a maximum speed of Mach 3


    MachBrE /mɑːk/ 🔊NAmE /mɑːk/ 🔊BrE /mæk/ 🔊NAmE /mæk/ 🔊 noun [uncountable] (often followed by a number 常后接数字) a measurement of speed, used especially for aircraft. Mach 1 is the speed of sound. 马赫，马赫数（速度单位，尤用于计算飞行速度，1 马赫等于音速）◆a fighter plane with a top speed of Mach 3 (= 3 times the speed of sound) 最高速度为 3 马赫的歼击机