| In short, the volume of an kosho pipe (= 1 yaku) is the same as the volume of 1200 proso millet grains, and the weight of the 1200 grains was set equal to 12 shu (銖; 朱 in abbreviation), and twice the 12 shu, or 24 shu, was set equal to 1 ryo. |
黄鍾管の体積が一龠部（やく）であり、これに入る黍1200粒を12銖（しゅ。朱はこれの略字）とし、これを二つ合わせた質量すなわち24銖を1両とした。 |