Then, builds the selection model of prefabricated element supplier base on VIKOR model, and calculates the weight coefficients based on variation coefficient method.
采用VIKOR模型建立预制构件供应商多指标评价模型，并采用客观赋权的变异系数法确定评价指标的权重系数。
RESULTS The method is accurate and easy to operate, and coefficient of variation is small.
结果该方法变异系数小，准确度高，操作简便易行。
The paper studied stable seepage flow rule of overpressure reservoir and created the method for using systematic well testing data to compute permeability variation coefficient.
本文研究了异常高压油藏稳定渗流规律，建立了利用系统试井资料求取渗透率变化系数的方法。
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