上世纪50年代,“石斗升合”曾作为小学算术课内容加以传授。其换算的关系为:一石等于十斗,一斗等于十升,一升等于十合。这里的读音却很复杂:石,读音为“但”;合,读音为“各”。我国很多地方将“石”与“担”通用,但不规范。“石”是容量单位,“担”是重量单位,二 50s of last century, “Shek Seng Hop He ” has been taught as primary school arithmetic class. The conversion of the relationship: a stone is equal to ten fighting, one bucket is equal to ten liters, one liter is equal to ten. The pronunciation here is very complicated: stone, pronunciation is “but ”; together, the pronunciation is “each ”. Many parts of our country will “stone ” and “bear ” common, but not standardized. “Stone ” is the unit of volume, “bear ” is the unit of weight, two