The following case study illustrates the migration of a report that USES the nestedSet function in an expression outside the within set clause of analytic summary function.
下面的案例研究展示如何迁移这样一个报告：报告在分析摘要函数的within set子句外部的一个表达式中使用nestedset函数。
A report using the function nestedSet outside the within set clause of an analytic summary function (such as rank) produces the following error.
在一个分析摘要函数(比如rank)的within set子句外部使用nestedset函数的报告将生成以下错误。
Based on prestress loss theory, a simplified analytic algorithm of virtual frictional loss function was set up in a universal way.
基于预应力损失理论，建立了具有普遍意义的拟摩阻损失函数简化解析算法。
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