你即將離開本站

並前往https://www.livescience.com/37022-speed-of-sound-mach-1.html

What Is the Speed of Sound | Mach 1 | Live Science

On Earth, the speed of sound at sea level — assuming an air temperature of 59 degrees Fahrenheit (15 degrees Celsius) — is 761.2 mph (1,225 km/h) ...

確定！ 回上一頁

查詢 「What is sound」的人也找了：

  1. What is sound
    2.
  2. sound中文
    3.
  3. What's sound
    4.
  4. Sound wave
    5.
  5. Different sound
    6.
  6. Dr binocs what is sound
    7.
  7. Light and sound
    8.
  8. Echo sound
    9.