释义 |
son.icH5sBn7Ik, $5sB:7nIkadj [not gradable]specialized of sound or the speed at which sound travels in air声音的,音速的Sonic waves travel at approximately 332 metres per second in air at sea level.声波在海平面上每秒钟在空气中的传播速度约332米。A sonic boom is an explosive sound made by an aircraft, bullet, etc. travelling faster than the speed at which sound travels.(超音速飞行器、子弹等的)轰声,声震[SUPERSONIC]
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