section canal的意思|示意

This is the earliest section of the Beijing-Hangzhou Canal.

这是京杭运河最早建成的一段。

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.

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。

It is shown that the optimal hydraulic section for compound canal has smaller section area and narrower breadth of water surface than trapezoidal canal by calculation and comparison.

并通过算例比较证实，复合断面水力最佳断面的面积和水面宽度比梯形水力最佳断面的小。