水面线 flowage line; hydraulic grade line; water plane; water surface curve; water su ..
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river water surface curve 河道水面线
water surface curve analysis 水面线分析
the channel water surface curve 渠道水面线
natural river water surface curve 天然河道水面线
Curve water surface 水面曲线
The qualitative analysis and quantitative calculation about water surface curve is one of problems on non-uniform flow in water conservancy works.
水利工程中提出的非均匀流问题之一，是关于水面曲线的定性分析和定量计算。
However, the unstable flow is usually considered as stable flow in the calculation of natural river water surface curve in order to minimize the calculation work.
但在天然河道水面线计算中，为了节省工作量把不恒定流视为恒定流。
Water flows through bend do a curve driving campaigns and the surface patterns and flow structures become adjusting and changing.
水流流经弯道作曲线运动，水面形态和水流结构发生调整和变化。
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