1) trapezoid section
梯形断面
1.
The traditional methods for computing critical water depth of open channel with trapezoid section (h k) are trial and error method, graphic method, approximate solution method and iteration method, whose shortcomings are rough precision, large computation amount and complex resolving problem.
目前计算梯形断面明渠临界水深hk的常用方法有试算法、图解法、近似公式法和迭代法 ,它们存在计算精度不高、求解复杂等缺点。
2) Trapezium-side method
梯形断面法
3) water surface profiles of trapezoid
梯形断面水面线
4) inclined square cross section
斜顶鼓梯形断面
5) trapezoidal section design
梯形横断面设计
6) duplex trapezoidal section
复式梯形断面
补充资料：异形断面钢材(见异形断面型材)
异形断面钢材(见异形断面型材)
special section steel
，一、u以uu、’“飞豆on gQngC01异形断面钢材(speeial Seetion steel)见异形断面型材。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条