查询词典 flood discharge

It is necessary and pressing to excavate and broaden the floodway to increase the capacity of flood discharge and enhance the standard of flood control.

因此，开辟淮河入海水道，扩大洪水出路，增加泄洪能力，提高下游地区的防洪标准是十分必要和紧迫的。

It is clear that the flood discharge risk is lower when the uncertainty of flood hydrograph is considered.

针对调洪演算重复、繁琐、工作量大的特点，本文也编制了处理前期数据的计算程序。

By Monte-Carlo Method the flood discharge risk is calculated with consideration of the uncertainty of flood hydrograph, and the result is compared with that without consideration of the uncertainty of flood hydrograph.

文章最后用蒙特卡洛法分别计算了此工程在考虑洪水过程不确定性和不考虑时泄洪风险值，比较二者的计算结果，后者的风险值明显大于前者，这说明，洪水过程不确定性对泄洪风险的影响不可忽略不计。

A flood peak cut coefficient is proposed to measure the affection of the flood hydrograph for the risk calculating of the flood discharge.

本文分析了洪水过程这一不确定性因素，并用洪峰削减系数将洪水过程的不确定性量化。

For the arch dam which reservoir has no suitable breach to build lasher and has mass flood discharge, opening large orifice for flood discharge has great advantage.

对于库区无适宜垭口可兴建泄洪道，而泄洪量又较大的拱坝工程，在坝身中开设大孔口泄洪具有显著的优越性。

In This paper, it is discussed that how to establish risk-analysis indexes system of flood discharge structures for concrete dam based on lack of monitoring data, and how to measure the flood discharge risk furtherly.

因此，本文就如何在监测资料缺乏的情况下建立混凝土大坝的风险指标体系进行了探讨，重点对泄洪系统中的水力风险进行了研究。

This paper reviewed the developments in 2-D numerical model of the water flow. By means of the latest observation data of the prototype, the detailed analysis was made on the major thalweg, section, island and bottomland, the erosion and deposition of the river bed and the scour hole near the dock and the law of the fluvial process was obtained. Based on the related references, the evolution trend of the channel after the Three Gorges was finished was predicted. The 2-D mathematical model of the water flow was set up and validated using the latest data. With the model, the flow and velocity of several cases were calculated. The stability computation of the bank at the typical section under difference conditions was carried out by adopting the world widely used Geo-Slope slope stability analysis program. Finally, the synthetical evaluation on the influence of the project on the flood level, velocity, river circumstances, bank protection and flood prevention was made and the conclusion that the construction of the dock had little effect on the flood discharge was obtained.

本文介绍了平面二维水流二维模型研究进展，对河道历史演变概述，通过最新原型观测资料对河道近期主泓线、断面、洲滩、河床冲淤、码头附近冲刷坑等进行详细分析，总结近期河道演变规律，并参考有关文献，对三峡建成后河道演变趋势进行预测；建立了平面二维水流模型，并根据最新资料对模型进行率定和验证，采用模型对几种工况组合进行壅水和流速计算；采用国际上广泛应用的Geo-Slope滑坡稳定分析程序对几种工况条件下工程断典型断面岸坡进行稳定性计算；最后总结工程建设对洪水位、流速、河势、堤防及防洪抢险等方面进行综合评价，得出码头建设对行洪影响较小的结论。

Research for the Optimization test of outlet of flood discharge tunnel in Narrow Water Course with Large Included Angle;2. The aerators are widely used in flood discharge tunnel s and spillways to prevent the cavitation damage of the structures,and air is sucked by flow from the bottom in normal aerator.

龙抬头明流泄洪洞采用常规的底部掺气设施，容易在反弧末端下游附近侧墙处形成掺气盲区，从而导致该侧墙的空蚀破坏，反弧末端下游侧墙是龙抬头明流泄洪洞掺气减蚀设计的重点和难点。

Bring forward optimum scheme of horizontal eddy flow discharge grotto in the right-bank of Gongboxia hydropower station, at the same time analyze the hydraulics characteristics of horizontal eddy flow discharge grotto in the Gongboxia hydropower station, for example flood discharge capacity、baffle ratio、exchange gas capacity、distribution of gas chroma、distribution of velocity of flow、average stress per time and distribution characteristics of fluctuation pressure and so forth.

提出了公伯峡水电站右岸水平旋流泄洪洞的优化方案，同时通过试验详细分析了公伯峡水电站水平旋流泄洪洞的水力学特性，如泄洪能力、消能率、通气量大小、掺气浓度分布、流速分布、时均压力和脉动压力分布特性等。

Then, transmission relationship between frequency for maximum flood discharge in a yearand frequency for every flood in this year was established. And based on the risk rate ofdynamic controlling reservoir water level in flood season defined by Prof. B.D Wang andmaximum entropy model of forecast error distribution, the definition of risk rates when usingflood forecast or combination of flood forecast and precipitation forecast to control limitwater level in flood season were difined. And their corresponded calculation methods weregiven as well in this dissertation.

在王本德教授对汛限水位动态控制风险率定义的基础上，结合预报误差分布的极大熵模型，通过分析年频率与次频率的转换关系，建立了利用洪水预报以及洪水预报和降雨预报联合应用动态控制水库汛限水位的风险率定义及其计算方法。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了