四水

平原区四水转化模型研究

The Model Research of " Four Waters " Conversion on Plain Areas

第二松花江干流四水转化模型研究及应用

Study and application of four waters transformation model for Second songhuajiang river

用流变相反应法合成了四水邻苯二甲酸镍，用TG、DTG、DSC、红外光谱、质谱研究了它在氮气气氛中的热分解机理。

Nickel phthalate tetrahydrate was synthesized by rheological phase reaction . Its thermal decomposition process in N2 was studied by TG , DTG and DSC , IR , FABMS .

结果可知，在500℃时，四水甲烷磺酸锌热分解中间产物为含氧硫酸锌（Zn3O（SO4）2）。

The intermediate of tetrahydrate zinc methanesulfonate decomposition was identified by X-ray diffraction . It is shown that the intermediate is Zn_3O ( SO_4 ) _2 at 500 ℃ .

通过对四水流域近数10a洪涝灾害资料分析表明：洪涝灾害发生频率高，且具有多发性、共生性与地域差异性的整体特征。

Based on analyzing the data of flood disasters in about ten years , some conclusions about integrate features of the flood water logging disasters are got as follows : high frequency , simultaneously occurrence and regional difference .

通过对ε己内酯合成工艺条件的研究，得到了最佳合成工艺条件：环己酮与过硼酸钠四水化合物摩尔比为1∶1.5，反应时间3h，反应温度80℃。

Through the study on the synthetic process , the optimum technological conditions were obtained , which were as follows : the molar ratio of cyclohexanone to sodium perborate tetrahydrate was 1 ∶ 1.5 , the reaction temperature was 80 ℃ and the reaction time was 3 h.

本文从两个方面定量研究了湖南四水治理项目对流域经济发展的影响：一是采用C-D生产函数法和乘数法分析了四水治理项目对流域经济增长的贡献；

The influences of Sishui Water-conservancy Projects ( SWPs ) on basins ' economic development are quantitatively studied from two aspects : first , SWPs ' contribution to economic growth is analyzed by using C-D production function and multiplier method ;

利用程序升温分解（TPDE）及热重－差热分析（TG－DTA）这两种程序升温动态分析手段，对四水硫酸锆结晶水的结合特征及热分解动力学行为进行了效详细的研究。

The binding morphology of crystal water with zirconium sulfate in the structure of tetrahydrate and the kinetic behavior of decomposition of zirconium sulfate have been investigated by means of temperature programmed decomposition ( TPDE ) and thermogravimetry differential thermal analysis ( TG-DTA ) .

四水硝酸钙熔盐的结构研究

A Study on the Structure of Calcium Nitrate Tetrahydrate Molten Salt

四水氯化锰与对甲基苯胺配位反应的热化学研究

Thermochemical studies of the coordination reaction of manganese chloride with p-toluidine

湖南省四水治理项目效益分析

Analysis of the Four-Water Treatment Project Benefit in Hunan Province

四水硝酸镉晶体的生长与其性能

Growth of Cadimium Nitrate Tetrahydrate Crystal and Its Properties

用废旧锌锰电池制取四水氯化锰的除铁工艺

Processes of Iron Removal in Making Manganese Chloride Tetrahydrate from Waste Zinc-Manganese Batteries

三面群山环抱，境内四水贯流。

Surrounded by mountains on three sides , inside the four water flow .

基于四水转化的灌区耗水量计算模型

Calculation method for irrigation district water consumption volume based on transformation of four-water

反相微乳液法制备纳米四水羟基硝酸氧铋

Preparation of nano-sized bismuth oxide nitrate hydroxide hydrate particles by a reverse microemulsion method

控制电位库仑法测定四水硫酸钚中的钚含量

Determination of the Plutonium in Pu ( SO_4 ) _2 4H_2O by Controlled-Potential Coulometry

湖南省湘资沅澧四水枯水期河道控制流量确定

Determination of channel control flow of four rivers in Hunan Province during dry season

邻苯二甲酸镍在氮气气氛中热分解分为三步：第一步四水邻苯二甲酸镍分解为无水盐；

The thermal decomposition of nickel phthalate complexes in N2 proceeded in three stages .

青霉素[钠盐，钾盐]罗谢尔盐，四水（合）酒石酸钾钠

Benzylpenicillin [ Sodium , Potassium ] Rochelle salt

室温固相反应制备纳米四水磷酸锌的热化学研究

Thermochemical Study on Solid State Reaction of Nanocrystalline Zinc Phosphate Tetrahydrate at Room Temperature

湖南四水流域适宜森林覆盖率指标研究

Index Research on the Suitable Forest Coverage of the Four Main Rivers in Hunan Province

结果表明：产物为二水和四水磷酸锌混合物；

The results show that the product is a mixture of zinc phosphate dihydrate and tetrahydrate .

层状四水硫酸锆催化合成乙二醇单乙醚醋酸酯反应机理的理论研究

Theoretical Study on the Reaction Mechanism of Synthesis of 2-Ethoxyethanol Acetate by Layered Zirconium Sulfate Tetrahydrate

湖南四水流域洪涝灾害特性与减灾战略

Integrate Characteristics and Flood Disasters Reduction Strategy in Xiang , Zi , Yuan and Li River Valley

塔里木河下游应急生态输水的四水转化研究

Study on " Four Waters " Conversion of Ecological Emergency Delivery in the Lower Reaches of Tarim River

土壤水在四水转化循环过程中，具有重要的循环和调蓄功能。

Soil water acts important circulating and regulating functions in the course of " four-water " transforming circulation .

四水平衡模型在博斯腾湖流域水资源利用与保护中的应用

Application of Tetra - Water Balance Model in Utilization and Protection of Water Resources in the Bosten Lake Basin

淮北平原四水转化模型实验研究与应用

A Study of the Four Water Phases Transformation Lumped Model in the Region of Huaibei Plain and Its Application

湖南四水流域水土流失成因与防治对策

The Cause of Formation and the Conservation of the Water and Soil Erosion of the Four Rivers in Hunan Province