When it is struck, a tuning fork produces an almost pur tone, retaining its pitch over a long period of time.

 
  • 當音叉被撞擊的時(shí)候,會(huì )產(chǎn)生一個(gè)接近純音的音調,并保持這個(gè)音調很長(cháng)一段時(shí)間。
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