查询词典 flood

Along with impoundment and operation of TGP,flood control construction after 1998 big flood and social and economic development,the situation of flood control,water resources, water ecological environment etc.

随着三峡工程的蓄水运用、1998年大水后的防洪建设、经济社会的发展，湖区的防洪、水资源、水生态环境状况等都发生较大变化。

The existing problems in the design of reservoir flood operations is analyzed, then aiming at the insufficience of the typical flood, the method for reservoir flood operation with classified forecast is presented in this paper.

在分析水库防洪调度设计存在问题的基础上，针对典型过程代表性的不足，本文提出了水库防洪分类预报调度设计方法。

Department of Water Resources, China Institute of Water Resources and Hydropower Research, Beijing 2. Department of Hydraulic Engineering, Tsinghua University, Beifing 100084）The existing problems in the design of reservoir flood operations is analyzed, then aiming at the insufficience of the typical flood, the method for reservoir flood operation with classified forecast is presented in this paper.

将水库防洪调度方法划分为两大类：一类不考虑预报，通常是选择"坝前库水位或实际入库流量"作为遭遇洪水量级及改变泄量的判断指标，称为常规防洪调度方法；另一类考虑预报，选择的判断指标多是产流预报的"累积净雨量"或汇流预报的"洪峰流量"或短时"晴雨"预报等信息，简称防洪预报调度方法。

Based on the flood level frequency curve, hydrological failure risk was divided into flood overflowing risk and flood overtopping risk.

基于推求的洪水位频率曲线，将堤防水文失事风险分为洪水漫溢风险和洪水漫顶风险。

Finally, the above mentioned theory and techniques were used to establish flood simulated system of Weihe, which will make irrigation works flood prevention system perfecter and provide science foundation to flood prevention department to institute scientific、 effective and roboticized decision on preventing or rescuing disaster.

该洪灾模拟系统实现体系的建立，使水利防汛系统的功能得到了进一步的完善，为防汛部门制定科学、高效、自动化的防灾救灾决策提供了一定科学依据。

General hydrology information collecting way can"t satisfy the requirement of present hydropower already, mostly it represents in inaccuracy and unreal time. It enhances inconvenience about flood analysis and decision-making to fight against flood, makes the results inaccurate and postposition, also, the reservoir"s dynamic capacity cant ignore in period of flood.

常规水利资料搜集方式已经不能满足当代水利水电工作的需要，主要表现在它的不准确性和非实时性上，这就给洪水分析、防洪决策等工作带来了很大程度的不便，使得所得的结果不精确和后置，并且越是洪汛期动库容所占的比例越是不能忽略。

It is also pointed out that overbank flood-induced deposition on flood plain is mainly caused by the transversal exchange of water and sand between the flood plain and the main channel. By water and sand diversion experiments performed in 2002, it is verif...

通过2002年的调水调沙试验，验证了漫滩洪水可有效增加平滩流量的认识，建议在下游泥沙还没有得到有效控制的情况下允许洪水在一定范围内漫滩，这样从长远来看对防洪是有利的。

Flood control decision supporting system is a non-project measure that can efficiently lessen the scathe of flood disaster and reduce the damage of flood, it is become more and more important .

防洪决策支持系统作为有效减轻洪灾的危害程度、降低损失的非工程措施，在现代的防洪减灾工作中发挥着越来越重要的作用。

In the first chapter, the scathe of flood disaster and the measures of controlling flood are looked back, The importance of developing the Real-time Flood Forecasting and Dispatching Decision Support Systems is analyzed.

本文第一章简要介绍了洪灾的危害性和治理洪灾的措施，并分析了作为防洪非工程措施的实时洪水预报和实时洪水调度管理的现实意义。

By study of the statistic characteristics of flood forecasting errors and their confidence intervals for Nushi watershed at Sanhuajian of the Yellow River and on the basis of a comparison of the precision criterion currently used for flood forecasting with the result of the error confidence interval method, it is concluded that the error of flood forecasting is of the characteristic of skew probability distribution, and that the evaluated results of forecasting errors are different by the above two methods.

因此，本文在三花间伊河卢氏流域洪水预报的基础上研究了误差置信限及误差置信限评定方法，并将误差置信限评定结果与现行水情预报精度标准[1]评定结果进行了比较。1 现行洪水预报评定方法流域洪水预报精度评定内容包括洪峰流量、峰现时间和洪量等。洪水预报误差指标有绝对误差、相对误差和确定性系数3种。预报误差小于许可误差时为合格预报。

Cable dampener cannot be rolled up but must be hung over the cable.

缆帆不能被卷起，必须保证处于展开状态

"This skylark is a present from my master," he says.

"这只云雀是我主人献上的礼物。"他说。