本文应用等面积系数法提出了圆形和U形断面临界水深的一种直接计算公式。
The approximate Solution and curve fittings of critical depth of round and U-shaped section canal by applying an equivalent square coefficient method were presented in this paper.
推导出具有软弱下卧层土矩形基础的直接计算公式，编制了相应的计算机程序。
The direct calculation formulas of the rectangular foundation containing weak underlying stratum are induced and a computer program is developed.
本文给出选矿物料平衡的线性计算模型，包括优化模型和最优解的直接计算公式。
In this paper, the linear computational model for the material balance in the mineral processing are given. They included optimization model and direct computational formula of the optimal solution.
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