Taking the first three teams of the expression of Theis exact solution as the approximation of the two wall functions describing the drawdown, the binary linear regression expression is developed.
将降深表达式中的两个井函数利用其展开式的前三项作为其近似式，建立一个二元线性回归方程。
Taking the first three teams of the expression of Theis exact solution as the approximation of the two wall functions describing the drawdown, the binary linear regression expression is developed.
将降深表达式中的两个井函数利用其展开式的前三项作为其近似式，建立一个二元线性回归方程。
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