律管

  • 网络pitch pipe; pitch pipes

律管律管

律管

pitch pipe

pine中文 ... pitch on 选中 pitch pipe 律管 ... pitch paying 浇注沥青 ...

pitch pipes

你也可以利用一套律管pitch pipes)来调弦。这种装置既便宜又便于携带,只是其音准不太稳定。

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