C1 adjective #19,690 最常用

(of sound waves, acoustics) Having frequencies below the human audible range

infrasonic 30秒了解

  • (adjective) (of sound waves, acoustics) Having frequencies below the human audible range
  • (adjective) (of a device) Generating or employing such sound waves

Meanings

  1. 1
    adjective (of sound waves, acoustics) Having frequencies below the human audible range
  2. 2
    adjective (of a device) Generating or employing such sound waves

反义词

ultrasonic
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