钱是一种计算单位，用这个计算单位可作为衡量价值的标准。
Money provides a unit of account that serves as a standard to measure value.
本表单位面积产量均按原始计量单位计算，故与表13 -17、19表的计算结果略有出入。
Output of farm crops per hectare in this table are calculated at original computation unit, so the data is different from 13-17, 19.
本表单位面积产量均按原始计量单位计算，故与表13 -17、19表的计算结果略有出入。
Output of farm crops per hectare in this table are calculated at original computation unit, so the data is different from 13-17, 19.
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