Mach
n[U]
(followed by a number 後接数词) ratio of the speed of sth (esp an aircraft) to the speed of sound 马赫
an aircraft flying at Mach two, ie twice the speed of sound 以两倍於音速飞行的飞机.
🏥 医学释义
马赫(音速单位)
🗣️ 情景例句
I find it amazing that you can't swim.
你不会游泳可真使我大吃一惊。
The best physicians are Dr. Diet, Dr. Quiet,and Dr. Merryman.