翻譯名義集 3.249

3.249

【一箭道】嘉祥云二里，或云取射垛一百五十步，或云百三十步，或云百二十步。《漢書．律歷志》曰：「度長短者，不失毫釐（孟康曰：『毫，兔毫也，十毫曰𣯛。』）。」又曰：「度者，分、寸、丈、尺、引也，所以度（大各切）長短也。本起黃鐘之長，以子穀秬黍中者（師古曰：『子穀，猶言穀子耳。秬即黑黍。先取北方為號，一黍之廣，度之九十分。中者不大不小，言黑黍穀子大小中者，率為分寸。』）。黃鐘之長，一為一分，十分為寸，十寸為尺，十尺為丈，十丈為引，而五度審矣。」

【The flight of an arrow】Jiaxiang says it is two li; others say it takes one hundred and fifty paces to the target, or one hundred and thirty paces, or one hundred and twenty paces. The Hanshu Treatise on Pitchpipes and Calendars says: 'In measuring length, do not err by a hair or a tenth of a hair (Meng Kang says: "Hao is a hare's hair; ten hao are called a miao").' It also says: 'Measures of length are the fen, the cun, the zhang, the chi, and the yin; they are that by which length is measured. They originally arose from the length of the Yellow Bell, using medium-sized grains of black millet (Shigu says: "Zigu just means cereal grains. Ju is black millet. First taking the north as the designation, the breadth of one millet grain measures ninety fen. 'Medium-sized' means neither large nor small; it means taking medium-sized grains of black millet as the standard for fen and cun"). For the length of the Yellow Bell, one makes one fen, ten fen make a cun, ten cun make a chi, ten chi make a zhang, and ten zhang make a yin, and the five measures of length are precise.'