| 词汇 | speed-of-sound |
| 释义 | speed of sound noun[ S ] uk /ˌspiːd əv ˈsaʊnd/ us /ˌspiːd əv ˈsaʊnd/ the speed of sound the speed at which sound travels: These planes travel at twice the speed of sound.这些飞机以两倍音速飞行。 These rifles can fire bullets at three times the speed of sound. Mach 5 refers to five times the speed of sound. Compare hypersonic subsonic supersonic ultrasonic The rocket came down at twice the speed of sound. Though some of the planes can fly as fast as twice the speed of sound, they have to obey airspeed restrictions. Supersonic defines a speed that is over the speed of sound, Mach 1. Speed of motion at full/half throttleidiom briskness burst of speed celerity clip clock ground speed haste hypersonic hypervelocity instantaneous velocity light speed momentum pace speed of light speediness supersonically swiftness throttle velocity You can also find related words, phrases, and synonyms in the topics: Physics: particular theories & concepts |
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