average weight method 基本例句 加权平均 IAS 2 allows the FIFO or weighted average cost formulas.实验结果表明该方法优于传统的加权平均系数组合方法。 Is the weighted average of the ratio of the total amount of overdue loans over the total outstanding mortgage loans.指过期按揭贷款总额占未偿还按揭贷款总额的加权平均比率。