流域

The discrete velocity ordinate method in the kinetic theory of gases is developed and applied to discretize the correspo

借助非定常时间分裂法和无波动无自由参数的NND耗散格式，建立直接求解微观分子速度分布函数的有限差分数值格式；研究并发展可用于离散速度坐标点选取和离散速度空间宏观取矩的高斯─埃尔米特无穷积分方法、等均间隔的牛顿─柯斯复合积分法、以勒让德多项式的根为积分结点的高斯─勒让德数值积分法，并应用于不同马赫数绕流模拟；通过对不同流域一维激波管问题、二维圆柱绕流问题和三维球体绕流的计算研究，并将计算结果与其他途径得到的研究结果诸如DSMC模拟值、N-S解及有关实验数据进行比较分析，创建了一套能有效模拟稀薄流到连续流不同流域气体流动问题简化的统一数值算法研究框架

Taihu Lake basin is one of the regions in China where water resources has been highly integrated used.

太湖流域是我国水资源综合利用水平较高的地区之一，党和政府十分重视太湖流域的综合治理。

At present,the problem of ecological fragility is becoming more serious in Qionghai Lake basin,Sichuan Province.

在此基础上，建立了一套流域生态脆弱性评估指标体系，运用层次分析法对流域生态脆弱性作了定量评估。

Finally, investigation and analysis is made on the internal conditions and external environment of the water resources sustainable development in Tai Lake Basin where has been taken as an actual case in this paper.

最后以太湖流域为例，对该流域水利可持续发展的内部条件和外部环境进行调查分析，并在此基础上，提出了实现可持续发展目标的具体战略规划方案。

Based on TM data,the structure change of land use and its driver factors in Chaohu Lake basin during the past 30 years are studied.

基于多时相的TM影像数据，从流域尺度研究了巢湖流域的土地利用变化，分析探讨了土地利用变化的社会经济驱动力。

According to sensitivity analysis and adjustment of model parameters, the hydrological and water quality process of the Lake Dianchi basin were simulated using observed and statistical data in 1988 and 1989 for each river.

介绍HSPF模型的主要结构和功能，通过对该模型参数的灵敏度分析和参数调整，利用滇池流域各入湖河流1988，1989年的水质监测数据及相关统计资料，分别对该流域的水文、水质过程进行了模拟。

Drainage area 3300km2, in the basin the network of waterways vertically and horizontally, the lake swings multitudinously.

流域面积3300km2，流域内河网纵横，湖荡众多。

Gross of natural resources of water of catchment of the Yangtse River 996 billion stere, 35% what take the throughout the country, at present development utilization rate has 18% only, divide outside propping up this catchment to use water, still pass in carrying out south project of water north attune is northwardly provide fresh water resource, its moist limits involves 26 provinces city, shortage of gross of this pair of water, and distributing very not all China has fundamental strategic value.

长江流域水资源总量9960亿立方米，占全国的35%，目前开发利用率只有18%，除支撑本流域用水外，还通过实施中的南水北调工程向北方提供淡水资源，其润泽范围涉及26个省市，这对水总量短缺、且分布极为不均的中国具有重要的战略价值。

(1)The Miscellaneous shrub (Thick and thin Miscellaneous shrub) landscape type is the largest area-part of Yangou watershed,farmland,robinia pseudacacia,mature orchard and grass are second to it.

中文摘要：统计分析燕沟流域不同生态功能景观的斑块构成，为流域治理效果评价和景观格局优化提供依据。

A ccording to the ,and connecting with the natural and social situations of the H uanghe valley in Shanxi Province,this paper m akes com prehensive analysis on the conditions of the water resources,introduces system - atically the m ethod for m aking the wat...

根据 "全国水功能区划技术细则"，结合对山西省黄河流域的自然、社会情况，尤其是水资源状况的综合分析，系统介绍了水功能区划的方法，对山西省黄河流域河流地表水进行了水功能区划并提出管理建议。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。