立地指数是评价林地质量的数量化指标。
The site index is the amount parameter of evaluating the quality of the forest land.
数量化指标后建立回归模型，分析后续课程成绩与前面各科成绩及招生类型之间的关系，预测后续课程学习效果。
After quantitative index analysis of the continuous course score and enrollment types, a regression model is established to forecast after course study score.
考虑到目前采用的属性指标的实际情况，特采用数量化理论对施工阶段岩质围岩亚级分级进行定量评定。
Therefore taking into account of the attributes of the current indices, quantification theory is adopted to give the rocky surrounding rock quantitative evaluation.
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