平均极化率
平均极化率-
从方程（9）我们能够确定平均极化率和分子半径。
From equation ( 9 ), we may determine the mean polarizability and the molecular radius .
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数值统计结果显示，798件沉积岩的平均极化率为2.40%，1149件火成岩的极化率为2.99%，436件变质岩的极化率为3.59%，因此，变质岩是本区较好的金属矿矿源。
The average chargeability value of 798 sedimentary rock specimens is 2.4 % , that of 1 149 igneous rock specimens is 2.99 % , and that of 436 metamorphic rock specimens is 3.59 % , which implies that the metamorphic rock might be the source of metallic ore deposits .