Using the currently accepted acoustic formula, it can be inferred that the inside diameter of the Xian Qin bamboo pipe must be about 0.71 cun.
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- 由此,根据声学公式,结合文献考证,计算了黄钟律管的管径,结论为:先秦律管应是竹管,管径范围约是0.;71寸。