平均值法;均值法
this paper summarises the method of mean value coefficient for solving integral equation and formulas for calculating prestress losses due to relaxation of steel, and shrinkage and creep of concrete in prestressed members.
本文系统地总结了解积分方程的中值系数法及预应力构件钢筋松弛和混凝土收缩徐变应力损失的计算公式。
by making an analysis of different relations of distance, method of gravity center, method of mean value of class and method of sum of squares of deviations are compared in this paper.
本文从各种距离之间的关系来对重心法、类平均法及离差平方和法作一些分析比较。
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