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.

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文件检查发生在 check 函数中，仅简单地检查以波浪号（~）或者井号（#）结束的文件，以井号后开始或扩展名 .pyc 结束的文件。

File checking occurs in the check function and simply looks for files ending with a tilde (~) or pound sign (#), beginning with a pound sign, or ending with the extension .pyc.

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为使用该值，则必须除去井号：使用 XSLT substring() 函数。

To use the value, you have to remove the hash mark: Use the XSLT substring() function.

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