乌江洪家渡水电站坝址河床狭窄、水位流量变幅大。
The dam site valley of Hongjiadu Hydropower Station is narrow, amplitude variation of water level and discharge at it are large.
水位流量关系的确立是一个难题，利用曼宁公式求解会产生较大误差。
To establish relationship between water level and water flow is a difficult problem, and to solve by using Manning's formula will engender fairly great error.
本文提出了落差指数直接解算的数学模型，并应用于长江中游螺山站的水位流量关系分析。
A direct calculation mathematical model to fall exponent for using computer is put forward and applied for rating curve analysis in Luoshan Station at middle reaches of the Yangtze River.
本文基于河道下断面的水位流量关系和连续方程的联立求解 ，导出了水位流量关系型的下边界条件。
The stage-discharge curve at the downstream boundary is combined with the continuity equation of the St.
对于局部线性的水位流量关系，用系统辨识理论对其进行建模，利用最小二乘法，拟合精度明显提高。
The modeling based on the system recognition theory and using the least square method in the case of the partially linear relationship the simulation precision is greatly improved.
成果具有较好的精度，在一定程度上反映出横水流方向的水位流量变化，为防洪水利计算开辟一条新的途径。
The solution results, in satisfactory accuracy, roughly reflect the lateral variation of water stage and flow discharge This model may be used as a new method for flood control calculation.
分析了传统水位流量关系曲线拟合过程中存在的问题，在此基础上应用免疫进化算法直接拟合水位流量关系曲线。
On the basis of problems existed in fit for relation curve of water level and discharge, the relation curve of water level and discharge is fitted directment by immunization evolving algorithm.
通过对湖区主要水文控制站的水位流量关系的分析，得到了近四十年来水情变化的一些规律， 供有关部门参考。
The hydrological regime change law is proposed by the analysis of discharge-stage relations of main hydrologic stations in Dongting Lake area in this paper.
通过反复的现场放水试验研究，发现矩型薄壁堰发生贴壁堰流时的水位流量关系与正常堰流时的水位流量关系不一致，相同水位时贴壁流的过流能力大。
A lot of on-spot experiments discovered that the water level and flow rate of wall-pressing weir flow are not accord with that of the normal weir flow.
研究人员指出，低频过程诸如河流流量和地下水水位的波动，通常不会对人类产生明显影响。
The researchers pointed out that low-frequency processes, such as fluctuations in stream flow and groundwater levels, would not usually be apparent to human populations.
模型利用实测资料进行模型率定与验证，证明该模型基本合理，能够模拟河网各河道的流量、水位与浓度。
The model isdebugged and validated by the data observed, so it is proved suitable to simulate river network discharge, water level and contamination concentration.
PLC根据所采集的流量、水位、温度等条件自动控制开、停泵的台数，以确保清水供水系统的正常运行。
According to the flux, water level, temperature, etc, PLC sends out command to start or stop pumps, and keeps the system in normal operation condition.
运行设计应满足沉沙池运行水位、设计入池流量、含沙量、泥沙沉降设计标准和运用时间等运用条件。
The operation design must meet with its operation conditions of the operation level, design inflow discharge, sediment concentration, sediment settlement design standard and the operation time.
其中流量控制回路实现了物模和数模在耦合边界处水位和流量的交换； 水位控制回路实现了入海口潮汐水位的模拟。
The flux control loop realizes the exchange between the water level value and flux value at the coupling boundary, and the water level control loop realizes tidal level simulation.
场次洪水的相似性分析中，以时段内流域主控站平均流量和平均水位作为特征指标建立可拓评判模型。
In the similarity analysis of floods, the extension model is developed which takes the average water level and average flow of key stations as two characteristic indices.
研究并提出了较高天然地下水位条件下截取边界定流量补给模拟方法。
The recharge simulation method of intercepting certain boundary flow under higher natural water table is studied and presented.
气体逸出可引起地下水流量、水位和温度的显著变化。
The gas spilling can make notable variation of the groundwater flow, water level and temperature.
步进控制法系通过一定的计算程序使闸门产生一系列连续或不连续的运动，产生一个预定的渠内水位和流量变化。
Through using certain calculation programming to produce a series of continuous or uncontinuous motions which produce a predicting channel level and discharge change.
可求解水利计算中日平均水位和日平均流量，本程序采用的是面积包围法。
Can solve water daily average calculation of the average water level and flow, the procedure was used in an area surrounded by law.
这一控制法产生的水位波动最小，并使渠内水体对流量的变化有最快的反应速度。
This control method has the advantages of producing minimum level oscillation, and of maximum response speed of the channel water mass to discharge change.
该控制系统有两条控制回路，即流量控制回路和水位控制回路。
The control system has two control loops, i. e. a flux control loop and a water level control loop.
水力自控闸门是借助水力和重力作用，在一定的水位条件下，随流量的变化，自动启闭的自动化闸门。
Automatic water sluice gate is under the waterpower and action of gravity, in the given water height condition; and it start and stop automatically as the flux change.
通过对浃里陈大桥桥头试验段的真空度、地下水位、流量、孔隙水压力、地表沉降等现场监测结果的分析；
The observation results of the bridge head experimental site of Jialichen Bridge are analyzed such as vacuum degree, ground water table, flowrate, pore water pressure and surface settlement.
洪水影响因素复杂，洪峰水位和洪峰流量之间呈一种模糊关系。
Because of the complication of influence factor of flood, the relationship between flood peak level and flood peak discharge is uncertain.
裂缝水流量与水位不呈正比关系。
The water-flow in fracture is not directly proportional to the waterhead.
该装置可在高围压及高孔隙水压力条件下采用定水位法、定流量法或压力脉冲法测试岩石的渗透系数。
This system can implement constant-head, constant flow-rate and transient-pulse permeability tests of specimen under high confining and pore pressures.
通过桥渡水文计算，确定了设防流量及设防水位，校核了大桥主要特征值；
The designed discharge and designed flood level are determined by hydrological computation and main characteristic value of highway bridge is checked.
根据相应水位(流量)理论编制了中俄界河乌苏里江洪水预报方案。
The flood forecast programme for the China Russia boundary river Wusuli river has been draw up according to the corresponding water level (flow) theory.
本文主要介绍长江三峡两坝间通航水流技术标准试验模型流量水位自控系统。
The microcomputer control system for flow and water level on the model by the standards of navigation water technology of the Yangtze River between two dams is presented in this paper.
本文主要介绍长江三峡两坝间通航水流技术标准试验模型流量水位自控系统。
The microcomputer control system for flow and water level on the model by the standards of navigation water technology of the Yangtze River between two dams is presented in this paper.
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