你即將離開本站

並前往https://www.health.belgium.be/en/ultrasound-and-high-frequency-sound

Ultrasound and high frequency sound | FPS Public Health

Is ultrasound audible? Sounds with a frequency of 20 kHz and higher are referred to as ultrasound (or ultrasonic sound).

確定！ 回上一頁

查詢 「Sound frequency」的人也找了：

  1. sound frequency中文
    2.
  2. sound frequency definition
    3.
  3. Sound frequency range
    4.
  4. Quality of sound
    5.
  5. Sound frequency
    6.
  6. Low frequency noise
    7.
  7. Sound frequency generator
    8.
  8. Pitch frequency
    9.