在科学技术不够发达、标准
度量衡不够大众化的时代，民间普遍以“升、斗”等容量单位来测量粮食的分量，这是时代的印记。
有很多文学作品中揭露了地主放
高利贷采取了小升（斗）出，大升（斗）进的手段欺诈农民，反映了
封建社会的剥削制度。
{ The gram, 1/1000 of a
kilogram, was provisionally defined in 1795 as the mass of one cubic centimetre of water at the melting point of ice.The final kilogram, manufactured as a prototype in 1799 and from which the IPK was derived in 1875, had a mass equal to the mass of 1 dmof water at its maximum density, approximately 4°C.
I am the one who edited the first section of this page I was pissed when I saw so many wrong information was given to the public of our chinese people,Its was totally bullshit all above in this section,If ever asked someone who worked at a rice store in china before,they wouldall tell you that one liter of rice is almost 1.5 shijin or 0.75 kilogram.so be careful about what this
baidu wiki tell you,everybody can edit it,include the idiots...and junior school kid.}