When it is struck, a tuning fork produces an almost pure tone, retaining its pitch over a long period of time.
音叉被敲击时,产生几乎纯质的音调,其音量经久不衰。
When it is struck, a tuning fork produces an almost puretone, retaining its pitch over a long period of time.
音叉被敲击时,产生几乎纯质的音调,其音量经久不衰。
When it is struck, the tuning fork produce pure tone, retaining its pitch over a long period of.
当敲击音叉的时候,产生几近纯净的音调,能持续好长一段时间。
When it is struck, a tuning fork produces an almost pure tone, retaining its pitch for a long period of time.
当被击打的时候,音叉会发出近乎纯净的音调,其音高会保持很长时间。
When it is struck. retaining its pitch over a long period of time. a tuning fork produces an almost pure tone.
音叉被敲击时。其音量经久不衰。发生几乎纯质的音调。
When it is struck, a tuning fork produces an almost pure tone, retaining its pitch over a long period of time.
音叉被敲击时,产生几乎纯质的音调,其音量经久不衰。栨。
When it is struck, a tuning fork produces an almost pure tone, retaining its pitch over a long period of time.
音叉被敲击时,产生几乎纯质的音调,其音量经久不衰。啚。
When it is struck, a tuning fork produces an almost pure tone, retaining its pitch over along period of time.
音叉被敲击时,产生几乎纯质的调子,其音量历久不衰。
When nit is struck, a tuning fork produces an almost pure tone, retaining its pitch over a long period of time.
音叉被敲击时,产生几乎纯质的音调,其音量经久不衰。詄。
When it is struck, a tuning fork produces an almost pure tone, retaining its pitch over along period of time. 19.
音叉被敲击时,产生几乎纯质的调子,其音量历久不衰。
When it is struck, a tuning fork produces an almost pure tone, retaining its pitch over along period of time. 19.
音叉被敲击时,产生几乎纯质的调子,其音量历久不衰。
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