Take unit standard grain as channel, we can ascertain converted coefficient, and realize quantity-quality balance of land requisition-compensation.
以单位标准粮为桥梁，确定耕地质量数量折算系数。从而实现耕地占补的数量——质量型平衡。
2
On the basis of a large number of field test data, the regression of the displacement coefficient and system efficiency for pumping unit wells were established.
Firstly, the paper introduced theory base of the study, explained what is Expo and Expo economy, expatiated on multiplicator effect and coefficient of input-output unit.