常見例句雙語例句The voltage in the signal varies in direct proportion to the sound wave.信號中的電壓按聲波比例變化。hhopen.comThe first wave that hits our ears is the direct sound which has travelled directly from the source to the listener.動畫聲音的來源 如果你想命令聽衆(zhòng)的注意力,但是一個聲源的眡圖,您可以動畫聲音的位置。 返回 direct sound wave