释义 |
DictionarySeeMach numberSee Mach number See Mach numberMach, Ernst Waldfried Josef Wenzel
Mach, Ernst Waldfried Josef Wenzel, Austrian scientist, 1838-1916. Mach band - a relatively bright or dark band.Mach number - the ratio between the speed of an object moving through a fluid medium and the speed of sound in the same medium. |