1.  velocity of sound
2.  sound velocity

• 1. 声速: SOS | sound velocity
• 2. 超声速: supersonic speed | ultrasonic velocity | superacoustic
• 3. 亚声速: subsonic velocity | subsonic speed | su onic eed

更多释义

• 1.实验是在日本室兰工业大学的超声速风洞中完成的。
  The experiment was done in the supersonic wind tunnel of Muroran Institute of Technology.
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• 2.声速也同样，取决于杨氏模量。
  The speed of sound also depends on Young's modulus.
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• 3.光速比声速要快，为每秒钟30万公里。
  Light travels faster than sound at the speed of 300,000 kilometres per second.
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