释义 |
MachBrE /mɑːk/NAmE /mɑːk/BrE /mæk/NAmE /mæk/ noun [U] () 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 |