
好词典

Named after Austrian physicist Ernst Mach (1838–1916), who studied supersonic motion.
❶ 马赫数,表示物体速度与音速的比值,常用于航空和航天领域描述超音速飞行器的速度。
“The jet flew at Mach 2, twice the speed of sound.”
(这架喷气式飞机以2马赫的速度飞行,是音速的两倍。)
“Breaking the sound barrier means reaching Mach 1.”
(突破音障意味着达到1马赫。)
Mach speed — 指以马赫数为单位的速度,常用于描述高速飞行器的速度。
“The missile travels at Mach speed to intercept its target.”
(导弹以马赫速度飞行以拦截目标。)