流量及断面形状，尺寸一定的条件下，相应的断面能量最小时的水深就是临界水深
Objective It is difficult to calculate critical depth of arched section tunnel for its complex geometrical shape.
目的建立普通城门洞形断面临界水深的简捷计算方法。
参考来源 - 普通城门洞形断面临界水深的近似计算法·2,447,543篇论文数据，部分数据来源于NoteExpress
提出了梯形渠道临界水深的一种迭代解法。
A new iterative method of calculating critical depth of water for ladder canal is presented in the paper.
基于模式搜索算法求解梯形明渠的临界水深。
The study was to solve the trapezoidal open canal critical depth of water based on the pattern search algorithm.
在明渠水力计算中，常需要计算临界水深，以判别水流流态。
Critical water depth is usually calculated to distinct the state of water current.
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