Textbook of traditional Chinese medicine in medical colleges: In the section of "Textual research on ancient and modern dosage", the prescription theory says: In the Han Dynasty, "one or two is about modern 9g (San Qian), one foot is about six inches and nine minutes, one bucket is about two liters, and one liter of water is about two? (200? Ml) ".He also said:" One dose of the ancient prescription is equal to three doses of medicine now. If you convert it directly, about 3g (one dollar) can be counted. " There are similar records in the Lecture Notes on Treatise on Febrile Diseases and the Dose Conversion Table of Ancient and Modern Times. "If Yun Sheng, capacity calculation, equivalent to 60? -? 80? Ml is suitable "and so on. /view/7 1ad 4529647d 27284 b 735 122 . html