助手标题  
全文文献 工具书 数字 学术定义 翻译助手 学术趋势 更多
查询帮助
意见反馈
   major aquifer 的翻译结果: 查询用时:0.203秒
图标索引 在分类学科中查询
所有学科
更多类别查询

图标索引 历史查询
 

major aquifer
相关语句
  主要含水层
     The environmental isotopes in the major aquifer of Liuqiao coal mining area have been tested and analyzed. The values of δ 18O of the aquifer are between -5.51‰ ~-10.87‰,average value is -9.34‰,and the values of δD of the aquifer are between -56.3 ‰~ -83.4‰,average value is -71.48‰.
     通过对刘桥矿区主要含水层的环境同位素测试分析 ,表明研究区内各含水层δ18O值为 - 5 .5 1‰~- 10 .87‰ ,平均 - 9.34‰ ;
短句来源
  相似匹配句对
     The major results are:
     主要结果是:
短句来源
     Choose the major
     选专业不要“雾里看花”
短句来源
     REACTION PATH SIMULATION OF THE CHANGE OF MAJOR IONS IN GROUNDWATER IN URBAN AqUIFER,NORTH CHINA
     华北城市地区潜水中主要离子含量变化的反应途径模拟
短句来源
     (5) aquifer simulation;
     (5)水区模拟;
短句来源
查询“major aquifer”译词为用户自定义的双语例句

    我想查看译文中含有:的双语例句
例句
为了更好的帮助您理解掌握查询词或其译词在地道英语中的实际用法,我们为您准备了出自英文原文的大量英语例句,供您参考。
  major aquifer
Preliminary examination of the temperature distributions in the major aquifer (Botucatu sandstone) suggest that this aquifer contains substantial quantities of warm waters in the temperature range 40 to 90°C.
      
Groundwater from both a perched and major aquifer (the WabashValley Aquifer) as well as surface water from a large retentionpond were sampled monthly for 34 consecutive months.
      
The Newmarket Till forms a regionally extensive aquitard separating two major aquifer systems in the Greater Toronto area, Canada.
      
The two major aquifer systems in the subbasin are the volcanic basalt aquifer and the alluvial aquifer composed of lacustrine surficial deposits.
      
The site is underlain by highly permeable river sands, gravels and the Sherwood Sandstone, which is a major aquifer.
      
更多          


The major aquifer of Beishan is composed predominantly of karstified Middle-late Devonian clastic limestone and reefal limestone with less amount of dolomite. Groundwaters were sampled from springs, rivers and wells at given depths in dry season ( in January ) and in rainy season (in June) during the time between January, 1983, and January, 1985. Chemical and isotope analyses were made to study the karst water system, and then the water-bearing media of karst system.The results show that; l.the chemical...

The major aquifer of Beishan is composed predominantly of karstified Middle-late Devonian clastic limestone and reefal limestone with less amount of dolomite. Groundwaters were sampled from springs, rivers and wells at given depths in dry season ( in January ) and in rainy season (in June) during the time between January, 1983, and January, 1985. Chemical and isotope analyses were made to study the karst water system, and then the water-bearing media of karst system.The results show that; l.the chemical compositions of groundwater have obviously seasonal variations, particularly the conduit water, in which the mineralization decreases more than 50% from dry season to rainy season in some places; 2jthe dissolved solid content of groundwater generally increases with depth, but it will reach a limit at a certain depth and then decreases; 3.the dissolved solid content of conduit water is lower than that of diffuse water flow; 4. in rainy season, two parameters, dolomite saturation index and CO2 partial pressure, are sufficient to distinguish the five types of waters; surface water, conduit groundwater, conduit spring, diffuse water flow and vadose water.But in dry season, it is difficult to study the water types by the use of both SID and Pco25 5.the radioactive isotope tritium 3H is also a useful parameter for studying the water-bearing media, even in dry season, the concentration of 3H in conduit water flow is considerably different from that in diffuse water flow.

研究岩溶水系统的含水介质特征是进行岩溶水文地质勘探工作的一项任务,本文从地球化学角度出发,利用北山矿区出露的泉水及大量的水文地质钻孔,通过地下水化学场在时间空间上的变化,研究了岩溶含水层的含水介质特征。 文中主要讨论了不同类型的地下水化学组成的季节变化,以及地下水矿化度在垂向上的变化,还讨论了利用碳酸盐平衡原理,通过矿物饱和指数(SIC,SID)与CO_2分压(Pco_2) 关系区分管道流及扩散流等。最后还提出了利用氚(~3H)来区分含水介质类型的可能性。

Groundwater is the major water source of Zibo city and provides approximately 70% of total water supplies in this city Therefore, the rational utilization and proper exploitation of groundwater resources is of essential importance for the sustainable development of the city The research area, which covers 5 districts and 1 county, is located in the Zibo syncline basin and belongs to a single hydrogeological unit In this research, the 6 administrative zones above mentioned is simulated as a unity...

Groundwater is the major water source of Zibo city and provides approximately 70% of total water supplies in this city Therefore, the rational utilization and proper exploitation of groundwater resources is of essential importance for the sustainable development of the city The research area, which covers 5 districts and 1 county, is located in the Zibo syncline basin and belongs to a single hydrogeological unit In this research, the 6 administrative zones above mentioned is simulated as a unity Geological and hydrogeological conditions are quite complex in this area since major aquifers are of fracture karst orientation with different media properties Furthermore, many large scale structural movements occurred in geological history also greatly influenced the characteristics of groundwater flow In previous studies, water balance method was often employed under such conditions However, because some important factors can not be determined accurately, the results are not very convincible Finite Element Method (FEM) is thus employed in this paper to resolve the contradiction between large computational effort and high precision demanding in groundwater resources evaluation of Zibo City First, a simplified conceptual model maintaining key features of the research area is set up through careful study of numerous geological and hydrogeological data and relevant literatures Then, with the well statistics of historical pumping and long term groundwater level observations, a mathematical model based on the conceptual model is constructed and calibrated In the meanwhile, relevant model parameters are also obtained by solving the inverse problem through trial and error approach After that, rectification procedures began with additional observational data The results show that computations and observations match very well at most locations and that the numerical model can be used to forecast groundwater flow field in the future The next step is to predict water head in the future using given pumping plans and other conditions, such as model boundary definition, precipitation series, etc Finally, suggestions on rational development and utilization of groundwater resources in Zibo City are discussed based upon analysis of the model output

本文采用有限单元法进行地下水资源评价以解决评价区供水面积大、精度要求高的矛盾。首先根据实际的开采量和长期观测孔的水位资料,校正数学模型,反求有关参数;然后给定开采方案进行未来水头的预测;最后研究地下水资源的合理开发利用问题。利用有限单元法进行水源地或单一含水层的地下水资源评价已被证明是先进的、有效的。本文是对水文地质条件非常复杂的大面积的区域,用有限单元法进行地下水资源评价的一种尝试,可供类似地区参考

The hydrogen and oxygen stable isotopes in the major aquifers have been tested and analyzed. The average value of δ(18O) of the Taiyuan Formation limestone water is -8.69‰ and the average value of δD is -68.64‰; the average value of δ(18O) of the Ordovician limestone water is -8.47‰ and the average value of δD is -70.10‰. Also described are the general characteristics of the surface water, the fourth aquifer of the Quarternary, the coal aquifer, the Taiyuan Formation limestone...

The hydrogen and oxygen stable isotopes in the major aquifers have been tested and analyzed. The average value of δ(18O) of the Taiyuan Formation limestone water is -8.69‰ and the average value of δD is -68.64‰; the average value of δ(18O) of the Ordovician limestone water is -8.47‰ and the average value of δD is -70.10‰. Also described are the general characteristics of the surface water, the fourth aquifer of the Quarternary, the coal aquifer, the Taiyuan Formation limestone aquifer and the Ordovician limestone aquifer in the mining district of the northern Anhui Province. Emphasis is laid on analyzing the supply and runoff condition in the karst aquifers of the mining district and the relation between karst aquifers and other aquifers.

对皖北矿区主要含水层的氢氧稳定同位素进行了测试与分析,岩溶含水层中太原组石灰岩岩溶裂隙水(简称"太灰水")δ(18O)均值为-8.69‰,δD均值为-68.64‰,奥陶系石灰岩裂隙溶隙水(简称"奥灰水")δ(18O)均值为-8.47‰,δD均值为-70.10‰。指出了该矿区地表水、新生界松散层类第4层含水层(简称"四含水")、煤系砂岩水、太灰水、奥灰水氢氧稳定同位素一般特征。同时根据太灰水和奥灰水氢氧稳定同位素组成,着重分析了底板岩溶水的补给环境与径流环境以及岩溶水与其它含水层之间的联系。

 
<< 更多相关文摘    
图标索引 相关查询

 


 
CNKI小工具
在英文学术搜索中查有关major aquifer的内容
在知识搜索中查有关major aquifer的内容
在数字搜索中查有关major aquifer的内容
在概念知识元中查有关major aquifer的内容
在学术趋势中查有关major aquifer的内容
 
 

CNKI主页设CNKI翻译助手为主页 | 收藏CNKI翻译助手 | 广告服务 | 英文学术搜索
版权图标  2008 CNKI-中国知网
京ICP证040431号 互联网出版许可证 新出网证(京)字008号
北京市公安局海淀分局 备案号:110 1081725
版权图标 2008中国知网(cnki) 中国学术期刊(光盘版)电子杂志社