subsonic
Having a frequency too low to be audibleHaving a frequency too low to be audible
» Rotating machines are essential in subsonic aeronautical propulsion.
Значение
значений: 4(без степеней сравнения)Having a frequency too low to be audible
(книжное, без степеней сравнения)Very quiet, almost inaudible
The noise of the ship was all around her. The faint subsonic rumble of the reactor and drive. (Leviathan Wakes, James S. A. Corey)
(без степеней сравнения)(aviation) less than the speed of sound (in the same medium, and at the same temperature and pressure)
дозвуково́йdozvukovój
(of speed) less than that of sound in a designated medium
(без степеней сравнения)With a Mach number such that 0.3 < Ma < 0.8 (approximately - the exact limits vary between sources)
Примеры
предложений: 1Rotating machines are essential in subsonic aeronautical propulsion.