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The article is decided through the analysis area society, economy grows the current situation to reach on the west basically restrict an element, research thinks low-level, socioeconomy develops industrial structure backward, city changes the standard process shortage of natural resources of slow, water and zoology environment are to bring about benefit of zoology economy system flimsily low, restrict the main factor that this division can develop continuously.

本文通过分析定西地区社会、经济发展现状及主要制约因素,研究认为产业结构低水平、社会经济发展水平落后、城市化进程缓慢、水资源短缺与生态环境脆弱是导致生态经济系统效益低下,制约本区可持续发展的主要因素。

In our studies,sludges composting was used as object, fluoranthene was on behalf of PAHs,and methods included dynamic sampling,room analysis,sludges' composting,leaching of soil column,and room culture were employed. The main contents include:the concentration and the distribution of PAHs in municipal sludges in Jiangsu Province,effects of composting on the concentration of PAHs in municipal sludges,the physicochemical properties of water dissolved organic matters in sludges before and after composting,effects of sludges composting and DOM on the desorption-leaching and eco-toxicity of FLT in polluted soil,and primary investigation of mechanism on same phenomena.

本论文以污泥堆肥为原料,以荧蒽(fluoranthene,FLT)为PAH的代表,采用动态取样、室内分析、污泥堆肥、土柱淋滤和室内培养等方法,系统研究了江苏城市污泥中PAHs的含量以及分布模式;堆肥对污泥中PAHs含量的影响;污泥堆肥前后水溶性有机物的理化性质特征变化;污泥堆肥对污染土壤中FLT解吸-淋滤、以及生态毒性的影响,并对有关现象进行了机理探讨。

Although the quality of day lily of Qingyang city is best in the whole country, the day lily is planted fragmentarily at the residence, roadside, bank of the canal, low bank of border, and district of field, and also do not form the best product region and suitable planting technology. The product region environment condition of day lily in Qingyang city was analyzed from2001 to 2005, the advantageous product regions of day lily in Qingyang city was planned, and planting technology of day lily was studied. The main result of study were as follows:First. Qingyang city belongs to dry agricultural region, its solar radiation is quite rich, but the water resources is short in all district, the agricultural production depends on the natural precipitation.

生产的黄花菜质量在全国名列前茅,但是庆阳的黄花菜多在宅旁、路边、渠岸、田边地埂等零星地进行生产,没能形成优势产区,对栽培技术研究也较少。2001年~2005年我们分析评价了庆阳市黄花菜产区环境,进行了黄花菜优势产区区划和旱作栽培技术研究,主要研究结果如下: 1 庆阳市太阳辐射比较丰富,水资源缺乏,农业生产靠天然降水,属旱作农业区,河流大部分水质较好,灌溉水源基本未受到污染。

Concludedly, it is pointed out that geotectonic is deeply influencing the erosion rule and is the decisive factor of desertification and lack of water in Huanghe River Valley in Shaanxi Province.(5) Based on the Theory of Dissipative Structure and the Hypothesis of Wavy Mosaic Structure, the coupling relation between eco-environment and geotectonics is theoretically discussed, and the main points are: i Degree of the order of eco-environment is higher in tectonic wave-dense belt than in tectonic wave-scatted belt.

系统研究了陕西生态环境特征和问题分析了陕西生态环境特征及陕西水土流失、沙质荒漠化、资源性缺水、主要生态系统生态功能降低等生态环境问题,运用替代市场价值法等方法估算了陕西环境问题所造成的经济损失,并估算了现阶段各种生态环境造成的经济损失,经分析认为陕西的生态环境使省域生态环境受到严重威胁,也影响着华北平原等周边地区的生态安全。

This paper gives a brief account of heat pump technology and the basic principle,recent development and classification of geothermic air-conditioner ,analyses the existing problems and gives an explanation of the general plotting,structure and main feature in developing water heat pump geothermic air-conditioner for household use.

简要介绍了热泵技术及地温空调基本原理、发展近况、分类方法,分析了其在家用系统开发存在的问题,描述了一种家用水源热泵地温空调开发的总体思路、结构原理及主要特点,并举实施例说明其节能、环保及利于家用推广的优势

Based on data of Yanhe river basin's hydrological stations on precipitation, runoff, soil and water conservation measure area sizes (terrace land, forestation land, grassed land, and silted dam land) from 1950s'-1980s', the basin's monthly precipitation station weightiness indexes and the four main measure areas weightiness indexes through correlation analysis and factor analysis were built.

以建立一种科学的较简单的评价方法为目的,以延河流域水文站20世纪50-80年代30余年降水、径流、水土保持主体措施面积(梯田、造林、种草、淤堤坝)资料为基础,运用相关分析、因子分析等方法,建立了流域雨量站各月降雨量权重指标体系、流域4大水土保持措施面积权重指标值,并构建了以水土保持面积指标、降雨量指标为参数的流域水文响应评价模型,进而分析水土保持措施对流域径流量的效应。

Haloid water is the concentrated seawater, in which, the consistence of solubrlrty salt is 40-50 times of seawater, its main component is magnesium.

卤水是浓缩了的海水,其中可溶性无机盐浓度是海水的40~50倍,其主要成分是镁,以卤水为原料生产镁产品,不仅价格便宜,而且卤水含杂质少,成分均匀,易处理,容易制备高纯镁制品。

The main products of our company are Industrial aluminium sulphate,Water-treatment aluminium sulphate,Ironless aluminium sulphate,Aluminium sulphate powder,Polyaluminium Chloride, Aluminum ammonium sulfate,High-purity ultrafine powder alumina,Ferrous Sulphate Monohydrate,Ferrous sulphate heptahydrate ect.

公司的主要产品有工业硫酸铝,水处理硫酸铝,无铁硫酸铝,硫酸铝粉末,一水硫酸亚铁,七水硫酸亚铁,聚合氯化铝,硫酸铝铵,高纯超细氧化铝。

Field investigation,pot culture test and water culture experiment of Suaeda heteroptera Kitag in Panjin"Red Beach"were conducted,the results showed that the increasing salt amount of the beach soil gave the main cause for the plant Suaeda heteroptera Kitag 's withering and death.

通过对翅碱蓬的野外调查、盆栽试验、水培实验,得出滩涂土壤盐分升高是引起翅碱蓬枯萎死亡的主要原因,并提出了恢复&红海滩&生态功能切实可行的技术措施。

Results: The optimal preparing process is: making Panax to be powder; extracting Rheum and Coptis respectively with ethanol; decocting Astragalus, Hirudo and Polyporus with water; then making all the extractions to be powder and mixing with Panax powder, then putting them into capsules. The content of Ginsenoside 〓 in one capsule should be not less than 0.235mg. Panax and Coptis are the main compositions that make Liuwei Tangshen Capsule reducing the blood sugar.

结果:确定最佳制备工艺为:人参粉碎成细粉,黄连、大黄分别用乙醇提取,黄芪、水蛭、猪苓三药用水共煎,各提取物干浸膏细粉与人参细粉混匀,装胶囊;有效成分含量的控制标准为:每粒胶囊中含人参皂苷〓不低于0.235mg;人参、黄连是六味糖肾胶囊发挥降糖作用的主要药味;六味糖肾胶囊中小檗碱在动物体内的分布和消除速度均较适中,但病理模型动物与正常动物相比吸收较差。

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推荐网络例句

By the time of its fall, most of the prisoners were writers who had written against the corruptions of the government.

到它被攻陷的时候,里面多数的犯人是写了反对政府贪污文章的作家。

The most obvious variation to ovum morphological character was that the color was changed from light green to sepiaceous in embryonic development, and all the ovums were almost hatched after 96h.

在胚胎发育过程中卵的形态特征最明显的变化是颜色从淡绿到深褐色,卵在发育96h后卵基本全部孵化。

There was a conflict between plebs and patricians in ancient Rome in 494BC.

在公元前494年,罗马发生了一次平民反对贵族的斗争。