mǎ​hè

Ernst Mach

Senses

马赫/ 馬赫 mǎ​hè Ernst Mach

Austrian physicist and philosopher (1838–1916) who studied supersonic speed and shock waves

马赫/ 馬赫 mǎ​hè Mach number

Ratio of the speed of an object to the speed of sound in the surrounding medium

References

classifier 马赫/馬赫 个/個