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Is located in Beijing, Tianjin, stone Golden Triangle area, 150 kilometers south of Beijing, Tianjin, 150 kilometers east, 45 km west of Baoding, Shijiazhuang, 187 kilometers south to, security and new to the Tsubo, Beijing-Shenzhen Expressway leads have been opened, the traffic facilities; an advanced communications facilities may be all over the country and the world more than 180 countries communications; water, electricity, gas and other industrial infrastructure is complete, for the domestic and foreign businessmen to invest and provide excellent conditions.

地处京、津、石金三角地带，北距北京150公里，东距天津150公里，西距保定45公里，南距石家庄187公里，安新至津保、京深高速公路引线已开通，交通便利；通讯设施先进发达，可与全国各地和世界上180多个国家通讯联络；水、电、气等工业基础设施完备，为中外客商投资兴业提供了优越的条件。

Bachu Oilfield of Tarim area,silicate,undersaturation salt water drilling fluid,field application

以前塔里木油田在盐岩层应用的高密度饱和盐水钻井液体系曾取得了良好的应用效果，但该体系仍有一些弱点尚未克服，如高密度 2 0～ 2

The physical chemistry properties of evaporite beds in Bachu area are analysed.On the basis of the feature of salt beds,the undersaturation salt water drilling fluid is determined.

塔里木盆地复合盐层地层分布广，在不同构造的钻探中都钻遇盐层，盐层厚度一般几十米到几百米，岩性以盐岩与膏岩、泥岩、泥质粉砂岩等不等厚互层。

The unexpected geological disaster such as Karst,fault,underground river,water and slurry gushes often happened in karst area during construction of a tunnel,which bring momentous disaster and unestimated eco- nomic loss to construction.

在岩溶地区隧道施工过程中，经常遇到溶洞、暗河、断层及突水、突泥等无法预料的地质灾害，给施工带来了重大灾难和无法估计的经济损失。

In the dissertation,Guizhou Province andGuiyang.Guizhou Province were selected as the research area and the model region.With theguidance of knowledge discover in database and soil erosion theory,remote sensing and GISwere used to study the senior and the primary method of obtaining the soil erosion message,which are based on unstructural knowledge discover in database.All the methods wereapplied to survey the soil erosion in Guizhou and to monitor the soil erosion change inGuiyang,all of the achievements enhanced the water-soil conservation in the research areaand the model region.

本文在知识发现和土壤侵蚀理论指导下，应用遥感和地理信息系统技术，选择贵州省为研究区，贵州省贵阳市为研究样区，进行了基于非结构性知识发现的土壤侵蚀信息提取方法初级方式和高级方式的研究，并把它们应用到研究区和研究样区的土壤侵蚀调查和土壤侵蚀动态监测工作中，促进了研究区的水土保持工作。

In field and pot experiment to research spatial coupling of nitrogen fertilizer and irrigating water in semi-arid area in North China under unsufficient irrigation.

主要结论如下：（1）在干旱半干旱地区，进行夏玉米生产，大幅度节约灌溉水用量（全生育期灌水量从2250 m3/ha 降低到1200 m3/ha、1125 m3/ha、600 m3/ha），对作物产量影响较小，产量下降幅度在10%-15%之间。

Soil Vapor Extraction is a common method of removing VOCs from the vadose, or unsaturated zone, which is the area between the ground surface and the water table.

土壤的蒸汽抽提技术常用于从渗流层或水不饱和层（指处于地平面与地下水位线之间的土壤区域）的土壤中脱除可挥发性有机物。

Cage culture of the mandarin fish also decreased the dissolved oxygen concentrations, the species number and biomass of the zoobenthos around the cage area, but had no significant effects on the water temperature, pH, transparency, species composition of phytoplankton and zoobenthos, and the species composition and biomass of rotifers, cladecerans and copepods.

网箱养鳜同时减少了网箱周围的溶氧、底栖动物的种类数和生物量，但对水温、pH值、透明度、浮游植物种类、原生动物种类以及轮虫、枝角类和桡足类的种类和生物量影响较小。

It is usually better to allow the gas to burn itself out in a confined area and keep adjacent objects cool with water, rather than to risk a potential explosion.

通常最好让气体在狭窄空间内自己烧完，同时用水一直冷却着临近的物体，而不是冒可能爆炸的危险。

At the mention of water,this area is short of it.

说到水，这个地区非常的紧缺。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。