base value短语⁹⁶⁶⁷⁷⁺⁶ 基本例句 基准数 Choosing datum mark to calculate the base value of each attribute; 选择基准点，计算基准点的属性基准值； cnki Proposals on the calculation of transformer equivalent resistance and the selection of power system bus voltage base value were also presented. 对变压器等值阻抗的折算、电力网络母线电压基准值的选取也进行了探讨，并给出了建议。 alljournals