A equation was used to fit the data of SWCC, and the relation between fitting parameters and dry density was studied.
通过水分特征曲线方程对试验数据的拟合，研究了拟合参数随干密度的变化情况。
S function was the best model in the fitting between stand density and age.
密度与林龄的拟合以S函数为最优模型。
Fitting orthogonal polynomial method for characterizing the functional relationship between the dry density and moisture content of earth-fill in standard compaction test is presented.
提出了描述标准击实试验中土料干密度和含水量之间函数关系的拟合正交多项式方法。
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