Answer | Crossword Clue |
---|---|
MACH | Speed ratio |
MACH | Speed ratio. |
MACH | ... number (speed ratio) |
MACH | Speed-ratio number |
MACH | -- number (speed ratio) |
MACH | Speed-of-sound ratio |
MACH | Speed of sound ratio |
MACH | Sound-speed ratio number |
MACH | Number representing speed-sound ratio. |
MACH | Physicist for whom a speed-of-sound ratio is named |