通过物理模型试验，研究了有植被的河道水流紊动特性。
The turbulent characteristics of flow in vegetated channels are studied in physical model tests.
把拜格诺的河道水流悬移质泥沙公式简化为简单概念的沟道产沙公式。
A conceptual formulation for gullies was obtained by simplifying the Bagnold's function of river sediment discharge.
主要研究内容如下：1.对流经柔性植被的河道水流进行了试验研究。
The main researches as follows: 1. Open channel flow over flexible bottom vegetation is studied experimentally.
本文对冰覆盖下的河道水流进行了区域划分，给出了区域分界面上的水流条件。
The paper divides regionally the flow under the ice cover and gives flow conditions of the regional boundary surface.
确保设计河道水流平顺，洪水不对中堤和左堤产生强烈顶冲的破坏，保证工程安全可靠。
The objective is to ensure the security of the project with smooth river flow and without damage on the middle and left banks by the flood.
该文采用具有自由水面和河床切应力计算的三维数学模型分析了桥墩群对河道水流的影响。
A three-dimensional numerical model with free water surface and wall shear stress was used to analyze the water flow affected by piers.
沙波运动是冲积河流泥沙运动的一种重要形式。沙波的消长对河道水流的阻力损失有很大的影响。
Sand wave movement is an important form of sediment movement for alluvial rivers and has a great effect on stream resistance.
该模型既可解决复杂的河网水流计算问题，亦适用于长河段、长时段的较复杂的天然河道水流计算问题。
This model can not only solve computational problem of hydrographic net, but also can solve computational problem of long watercourse and complex flow in natural river.
本文通过引入滑动最小二乘法和有限差分法，得到水动力学无单元计算法并应用于复杂边界的河道水流运动方程。
Based on the moving least squares method and the finite difference scheme, a new element \ | free method is proposed and used to simulate horizontal two dimension river flow with complicated boundary.
河道淤塞，水流迟滞。
从特赫里大坝、恒河上游水流河道清理饮用水121英里(194千米)顺流而下直到首都。
From the Tehri Dam, the Upper Ganga Canal channels clean drinking water 121 miles (194 km) downstream to the nation's capital.
这条河的水流量是泰晤士河的350倍，它有自己的河道、急流甚至瀑布
Watershed discovery: The river - with 350 times the flow of the Thames - has channels, rapids and waterfalls
尼罗河的这一段河道宽阔水流有力而平稳。
人生的道路就像一条大河，由于急流本身的冲击力，在从前没有水流的地方，冲出崭新的意料不到的河道。
Thee road of life is like a large river, because of the power of the currents, river courses appear unexpectedly where there is no flowing water.
弯道水流是渠道和河道中常见的一种水流运动现象。
Bend flow is a common phenomenon of water movement in channels and river course.
对复式游荡型河道，建立了一种新的上层水流计算方法。
For meandering channel, a simplified calculation method for upper layer flow is established.
由于污染物在水流中的扩散迁移过程受水温、局部流速与流向、河道形状等因素的影响。
The movement and diffusion process of pollutants in current of water are affected by water temperature, local flow velocity and direction, stream shape, and so on.
河流：在河道或河床的水流，如小溪，细流或小河。
A flow of water in a channel or bed, as a brook, rivulet, or small river.
水流及河流控制工程对加速河道冲刷有严重影响。
Stream and river control works may have a serious local influence on accelerating channel erosion.
分析表明，对于平原河道，动力项和阻力项偏离是主要的，惯性项的偏离对模型水流运动影响较小。
For mild channel, it is shown that dynamic term and resistance term deviations caused by the distortion influence model water flow movement more seriously than inertia term do.
古河道由水流切割而侵入下伏的红色粉砂岩中。
Channels are incised by streams into the underlying red siltstones.
提出在河道中持续筑堰，改变水流通过方式，实施水沙分离。
Proposed weir in the river continued to build and change the way water flows through the implementation of water and sediment separation.
结果表明，达到动力平衡时，河道中发育的床面结构越强，消耗水流能量越多，从而稳定维持的纵坡降越大，因此在一定程度上决定了河道纵剖面。
The results indicated that more intense streambed structure means greater stream power consumption and steeper channel slope when rivers are in dynamic equilibrium.
人生的道路就像一条大河，由于急流本身的冲击力，在从前没有水流的地方，冲刷出崭新的意料不到的河道。(泰戈尔印度)。
The road of life is like a large river, because of the power of the currents, river courses appear unexpectedly where there is no flowing water. (Tagore India).
人生的道路就像一条大河，由于急流本身的冲击力，在从前没有水流的地方，冲刷出崭新的意料不到的河道。(泰戈尔尔印度)。
Thee road of life is like a large river, because of the power of the currents, river courses appear unexpectedly where there is no flowing water. (Tagore India).
在这里，水流向浅浅的戏水池，当水过多时，会溢出到河道之中。
From there, the water flows into a shallow play pond, itself spilling over into a wadi when there is too much water.
在这里，水流向浅浅的戏水池，当水过多时，会溢出到河道之中。
From there, the water flows into a shallow play pond, itself spilling over into a wadi when there is too much water.
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