1)water quality index水质指数
1.In order to get the water quality index(WQI), we have to spend much time to deal with a large number of data when we assess the quality of source water.采用综合水质指数法对原水水质评价的过程中,水质指数的计算十分繁琐,出错率高,且不易校核。
2.The water quality index was proposed to generally evaluate the urban drinking water quality.本文建议采用水质指数法来对饮用水水质进行综合评价。
2)water quality index evaluation method水质指数法
1.In this paper, combining the investigation of water and sand environment of Chaohe by the project“The item of continuable utilize of water resourse in the capital at the beginning of 21C”,all the methods,including the improved water quality index evaluation method,fuzzy synthetic evaluation method,the water quality assessment characteristic comprehensive model and the water quality comp.本论文结合“21世纪初期首都水资源可持续利用项目”工程对潮河水沙环境的影响研究,用改进了的水质指数法、模糊综合评价法、水质综合特征模式、水质综合评价法对潮河上游1996-2000年及2002-2004年的水质资料进行了评价,通过评价结果的对比可以明显的看出:改进了的水质指数法从优先有毒污染物、污染物净化难易、水源地背景值三方面考虑,将参与评价的项目分为三类,在评价中按类区别对待,从严控制毒性污染指标,弱化背景值和经处理易达标的污染指标,这样对水体进行评价,较客观准确的反映了水体的水质状况,然而表述虽科学客观,却缺乏全面性。
3)Nemerow Exponent尼梅罗水质指数
1.Aiming at the water environmental problems in Xin'an River Basin,adopting Nemerow Exponent theory and method of over standard with weight,this paper got a conclusion of analysis that the whole quality of water reached Ⅱor Ⅲ national standard of water and most part of the river could reach t.针对安徽省黄山市境内新安江流域内存在的主要水环境问题,采用尼梅罗水质指数和超标加权法对新安江流域水环境质量进行了评价和分析。
4)Horton water quality index assessment霍顿水质指数法
5)Water Quality Identification Index水质标识指数
1.Water Quality Identification Index in some Rivers of Yili District;伊犁地区部分河流的水质标识指数
2.Application of water quality identification index to environmental quality assessment of Dianshan Lake水质标识指数法在淀山湖水质评价中的应用
3.The single factor water quality identification index,which is a new tool for single water quality factor assessment of surface water,is presented.出一个全新的河流单因子水质评价指数———单因子水质标识指数 。
英文短句/例句
1.Application of water quality identification index to environmental quality assessment of Dianshan Lake水质标识指数法在淀山湖水质评价中的应用
2.Lake Eutrophication Assessment:Comprehen-sive Water Quality Identification Index湖泊营养状态的综合水质标识指数评价及检验
3.pH [water quality objective]酸碱值〔水质指标〕
4.dangerous substance [water quality objective]危险物质〔水质指标〕
5.Characterization of Water Quality and Development of Ancillary Techniques for Organic Pollutants Analyses;水质有机污染多参数指标与联合检测技术研究
6.Application of Multi-index Mathematical Model to Detect Malignant or Non-malignant Hydrathorax and Ascites数学模型运用于多指标联合鉴别胸腹水性质
7.Application analysis of the quality index and the quantity index;数量指标和质量指标理论与应用评析
8.The major pollution indicators in the Yangtze River system are petroleum and ammonia nitrogen.长江水系的主要污染指标是石油类、氨氮和高锰酸盐指数。 与上年相比，水质持平。
9.Criteria of Injection Water Quality and the Determination Methods in Jianghan Oil Area;江汉油区注入水水质指标及确定方法
10.Studies on index system of comprehensive statistics report of water sector;对水利综合年报指标体系的几点认识
11.%9 can't identify or specify the path to the system database.%9 无法标识或指定系统数据库的路径。
12.An identifier that indicates the location of an item of data.指示一个数据项的位置的一种标识符。
13.Study on Relationship Between Body Mass Index and Function,Diathesis Among Students.;学生体质指数与机能、素质指标关系的研究
14.The quality of the water from Beijing to Tianjin is worse than Grade V. The key pollution indicators are ammonia nitrogen, petroleum, potassium permanganate index and volatile phenol.北京入天津境内水质为劣Ⅴ类。 主要污染指标是氨氮、石油类、高锰酸盐指数、挥发酚。
15.5 days biochemical oxygen demand [BOD5] [water quality objective]五天生化需氧量〔水质指标〕
16.Analysis of seasonal changes in water quality of Chongming Island in Shanghai,China崇明岛河道水质指标季节性变化分析
17.Identification of Seawater-tolerant Spinach Cultivar and Selection of its Form Index耐海水菠菜种质鉴定与形态指标选择
18.quantitative and qualitative indicators of social development社会发展的数量和质量指标
相关短句/例句
water quality index evaluation method水质指数法
1.In this paper, combining the investigation of water and sand environment of Chaohe by the project“The item of continuable utilize of water resourse in the capital at the beginning of 21C”,all the methods,including the improved water quality index evaluation method,fuzzy synthetic evaluation method,the water quality assessment characteristic comprehensive model and the water quality comp.本论文结合“21世纪初期首都水资源可持续利用项目”工程对潮河水沙环境的影响研究,用改进了的水质指数法、模糊综合评价法、水质综合特征模式、水质综合评价法对潮河上游1996-2000年及2002-2004年的水质资料进行了评价,通过评价结果的对比可以明显的看出:改进了的水质指数法从优先有毒污染物、污染物净化难易、水源地背景值三方面考虑,将参与评价的项目分为三类,在评价中按类区别对待,从严控制毒性污染指标,弱化背景值和经处理易达标的污染指标,这样对水体进行评价,较客观准确的反映了水体的水质状况,然而表述虽科学客观,却缺乏全面性。
3)Nemerow Exponent尼梅罗水质指数
1.Aiming at the water environmental problems in Xin'an River Basin,adopting Nemerow Exponent theory and method of over standard with weight,this paper got a conclusion of analysis that the whole quality of water reached Ⅱor Ⅲ national standard of water and most part of the river could reach t.针对安徽省黄山市境内新安江流域内存在的主要水环境问题,采用尼梅罗水质指数和超标加权法对新安江流域水环境质量进行了评价和分析。
4)Horton water quality index assessment霍顿水质指数法
5)Water Quality Identification Index水质标识指数
1.Water Quality Identification Index in some Rivers of Yili District;伊犁地区部分河流的水质标识指数
2.Application of water quality identification index to environmental quality assessment of Dianshan Lake水质标识指数法在淀山湖水质评价中的应用
3.The single factor water quality identification index,which is a new tool for single water quality factor assessment of surface water,is presented.出一个全新的河流单因子水质评价指数———单因子水质标识指数 。
6)water quality sanitary comprehensive index水质卫生指数
延伸阅读
迁移效率指数、偏好指数和差别指数迁移效率指数、偏好指数和差别指数 迁移效率指数、偏好指数和差别指数迁移效率指数是用于测定两地间人口迁移效率的指标。它是净迁移对总迁移之比。计算公式为:EIM一摇寿纂拼又‘。。上式中，}人么夕一材方}为i、]两地净迁移人数;从少+材户为i、]两地总迁移人数;El入了为迁移效率指数。 EIM的取值范围为。至100，如某一地区的值越大，反映迁移的的影响也越大。如果计算i地区与其他一切地区之间的人口迁移效率指数EIM厂，则: }艺材。一芝Mj、}EIM汀艺。+乏M，(j笋i) 迁移偏好指数是从一个地区向另一地区的实际迁移人数与期望迁移人数之比。计算公式为:____M.___材尸2行一:一二子一一不石一二，么M“ 了厂‘.厂‘、八 }二不十二六二1 、厂厂7上式中，M“为从i地迁到j地的实际迁移量;艺材。为总的人口迁移量;尸为总人口;M尸I，j为迁移偏好指数。通过计算迁移偏好指数，可以反映各地区的相对引力。 迁移差别指数是反映具有某种特征的迁移人口与非迁移人口区别的指数。例如，专业技术人员的人数所占比重，各种文化程度人数所占比重等，以便研究人才流失和其他间题。计算公式为:M‘从IMD、一翌不丝xl。。 .义V‘ N上式中，M为迁移人数;M，为具有i特征的迁移人数;N为非迁移人数;N‘为具有i特征的非迁移人数;了八了D、为迁移差别指数。
