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
Well, here's the bottle opener, and here's the flashlight.
哦 ,这是开瓶器 ,这是手电筒。
Old wood is best to burn, old book to read.
老柴好烧,老书宜读。
His answer was to lift the vessel out of the water by making it ride on a cushion of air,