传硕公版书
广度
跬，一举足也。倍跬，谓之歩。
四尺，谓之仞；倍仞，谓之寻。寻，舒两肱也。倍寻，谓之常。
五尺，谓之墨；倍墨，谓之丈。倍丈，谓之端。倍端，谓之两。倍两，谓之疋。疋有五，谓之束。
小尔雅 · 孔鲋 · Chapter 12 of 14
广度
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