The hydraulic characteristics of runoff flow on loess steep slope were studied experimentally in flume.
通过黄土水槽冲刷试验，初步研究了黄土区坡面径流的水动力学特性。
Describes a new tipping bucket type telemetry runoff flow-meter with automatic measure amount and time of runoff.
介绍一种新型遥测径流量仪，可自动测量和记录径流量和时间这两个相关量。
The Froude number of runoff flow larger than 1 under the all experiments and it is belongs to the turbulent condition.
而坡面流弗劳德数在整个试验过程中均大于1，属于急流范围。
Wetland design can moderate peak flow rate and volume of runoff discharge and sediment deposition during precipitation events.
湿地项目可以缓和雨洪峰值流率及降水过程中的径流排放量和沉淀量。
In this paper, the mechanism of runoff-producing and flow confluence in karst area, the structure function of karst hydrological conceptual model, and the problem of modelling process are discussed.
本文侧重讨论岩溶水循环中产流与汇流、岩溶区流域面积确定、地表水与地下水划分、以及解决这些问题的技术方法。
The designed flood peak flow in storm sewer is usually calculated by adopting a constant average runoff coefficient at present in China, simple as it is, it's not reasonable enough.
目前，我国采用单一地表的平均径流系数计算雨水管渠的设计洪峰流量，这虽然使计算简化，但不尽合理。
Extremely uneven runoff distribution in a year and low water flow in dry season are causative of deterioration of the river water.
年内径流分配极不均匀、枯水期流量小是导致河流水质恶化的主要原因。
The slope runoff formed by soil erosion is two-phase flow constituted by water and sand.
土壤侵蚀所形成的坡面径流是水沙液固两相流。
This virtual instrument may real-time, on-line survey runoff speed of flow.
该虚拟仪器可以实时、在线测量径流流速。
Contribution percentages about precipitation to runoff were calculated to divide rapid flow and slow flow in the model, the proportion of them of Wuyandong subterranean stream system is 2 to 3.
通过降水对径流的贡献率进行快速流和慢速流的划分，屋檐洞地下河系统的快速流与慢速流比例接近2∶3。
The results show that while the heat source of thePlateau is weaken, the runoff is decreased and flow is descended.
结果表明，高原热源减弱则径流减少，流量也随之下降。
The upper reaches deforestation of Minjiang River presents positive correlation with the change of low water flow, which proves it is the main factor that generates decrease of runoff in dry season.
岷江上游森林破坏与枯水流量变化是呈正相关的，岷江上游森林破坏是引起枯水期径流减少的重要原因。
The position of power axis of flow is determined by main channel when runoff is small, while the change law conforms with the law of rectangular section when runoff is large.
当小流量时水流动力轴线的位置取决于主槽的位置，当大流量时水流动力轴线的变化规律接近矩形断面的情形。
Froude number of slope runoff of road decreased with runoff duration under a certain slope and the different flow discharges.
在一定坡度不同流量条件下，道路坡面径流弗汝德数随径流历时增长而减小。
The hydrodynamic characters of runoff in the process of rill erosion were studied by using runoff scouring experiment under the different slope gradients and the different flow discharges.
通过不同坡度、不同流量的组合放水冲刷试验，对坡面细沟侵蚀发生过程中的坡面流水动力学特性进行了研究。
The flow in each sub basin is calculated and then added together to get the runoff concentration of the main river.
在模型建立的过程中， 将流域划分为几个子流域，先对每个子流域中的产流进行计算， 通过河道进行汇流。
The generation process of runoff and sediment erosion and the hydrodynamic characteristics of flow on forage grass slope with different coverage are quantitatively studied in laboratory.
通过室内模拟降雨试验，研究了不同盖度草地与裸地坡面的产流产沙过程与坡面流水动力学特性。
The runoff causes the low-density water piling along the coast; and the Coriolis effect makes the water flow to the west.
径流造成岸边水体堆积及形成低密度海水，由于地转效应，海水西向运动。
The probability of annual runoff for high, normal, and low flow years due to the change of mean annual runoff was studied.
并研究了仅由均值变化引起的这两个流域丰水、平水及枯水年出现的概率变化。
Using the systemic and comparative methods, this paper reviews the low flow runoff from natural and anthropogenic factors, its forecast methods.
采用系统和比较的方法对影响枯水径流的自然与人为因素、枯水径流的预测方法进行总结。
Advances in recent 30 years in the theories of watershed runoff generation, flood wave movement in rivers, and watershed flow concentration are briefly introduced.
根据国内外文献资料，对近30年来流域产流理论、河道洪水波运动理论和流域汇流理论的新进展作了扼要介绍。
The unit width runoff energy consumption increased with the flow discharge increasing but changed in parabola form. The critical slope is between 21 and 24.
坡面单宽径流能耗随流量增大而增加，随坡度变化呈抛物线趋势，临界坡度出现在21和24之间。
It is worthy to study whether making technique scheme of tour gauging has an influence on the parameters of runoff yield and flow concentration in small catchment, and how big the influence is.
水文巡测技术方案的制定对小流域产汇流参数是否存在影响，影响有多大，同样具有一定的研究价值。
The study of the surface runoff system model is the crux involving relevant concentrational flow theory in hydrology.
地面径流系系统模型的研究，是涉及水文学有关汇流理论的核心问题。
There are many factors that affect the runoff modulus and the variation coefficients of flood discharge and low flow, such as climate, rock, soil, land form, and so on.
影响流域洪、枯水径流模数、变差系数的因素很多，如气候、岩性、土壤、地貌等许多自然条件。
The region of upper Lanzhou is main runoff-producing area in Yellow river basin, and the base-flow plays an important role in the runoff.
黄河兰州以上是黄河流域主要来水区，其中基流在来水量中占有相当大的比重。
The average sediment yield rate and flow velocity decrease with the increase of coverage, but the influence of coverage on runoff is not remarkable.
草地坡面的平均输沙率及坡面流速随草地盖度的增大而减小，而盖度对草地坡面径流量的影响则不明显。
Design and development of the experimental system of runoff-producing and flow concentration of city underlying surface.
设计并研制了城市下垫面降雨产汇流实验系统。
Design and development of the experimental system of runoff-producing and flow concentration of city underlying surface.
设计并研制了城市下垫面降雨产汇流实验系统。
应用推荐