subsonic
Having a frequency too low to be audibleHaving a frequency too low to be audible
» Rotating machines are essential in subsonic aeronautical propulsion.
Значення
значень: 4(без ступенів порівняння)Having a frequency too low to be audible
(книжне, без ступенів порівняння)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 ступенів порівняння)(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 ступенів порівняння)With a Mach number such that 0.3 < Ma < 0.8 (approximately - the exact limits vary between sources)
Приклади
речень: 1Rotating machines are essential in subsonic aeronautical propulsion.