Its main role is to reduce the raw water pollution index, and residual chlorine and other impurities, to reverse osmosis water requirements.
其主要作用是降低原水的污染指数和余氯等其他杂质，达到反渗透的进水要求。
Even though the content of pollutant in the water of Longjiang-river was diluted by seawater, the average water pollution index to the inlet of Fuqing bay is still as high as 3.2.
龙江水经过邻近海域的海水稀释之后污染物浓度虽有所降低，但是到了福清湾顶平均污染指数仍然高达3.2。
It summarizes shortages of present water quality evaluate methods, and puts forward water pollution index evaluate methods, then explains detailedly its definition, calculate methods.
在总结分析现有水质评价方法的基础上，提出了水污染指数评价法，并对其定义、计算方法进行了详细介绍。
Researchers compiled a composite index of "water threats" that includes issues such as scarcity and pollution.
研究人员编制了“水威胁”综合指数，其中包括水短缺和污染之类的问题。
We discuss water quality of water body with biologic index in biology monitoring of water quality, and make objective evaluation to organic pollution of water body.
本文通过水质生物监测中的生物学指标的讨论，较准确的反映被监测水体的水质状况，进而对水体有机污染程度作出客观地评价。
Chemical oxygen demand is an integrative index for evaluating the degrees of organic pollution in water, and is also one of the important parameters in water monitoring.
化学需氧量是评价水体有机污染程度的综合指标，也是水质监测的一个重要参数。
Single gene index method and complex pollution indices method are used in this paper to evaluate the actuality of the water pollution in the watershed of the Futuan river.
运用单因子指数法和综合污染指数法对傅疃河流域的水环境污染现状进行了评价；
The monitoring data collected from the water body of ShiMen reservoir were analyzed with the method of comprehensive pollution index.
利用综合污染指数法对石门水库多年监测结果进行分析，基本掌握了石门水库水质的污染状况及变化趋势。
Based on principle of reverse osmosis and used microcomputer 89c52 as controller, an automatic detection instrument of sludge density index (SDI) of water pollution is designed.
基于反渗透原理，以89c52单片机为控制器，设计了水污染指数中的淤积密度指数(SDI)的自动在线测试装置。
The results showed that the method of tendency weight pollution index is accurate and convenient for the assessment on water bodies.
并通过实例与均值污染指数法进行了比较，结果证明，趋势权重指数法评价水体质量准确、简便。
Water quality in Huainan part of Huaihe river is evaluated by comprehensive pollution index method according to dissolved oxygen etc indexes.
采用综合污染指数法，选择了对淮河淮南段水质影响较大的溶解氧、 高锰酸盐指数、生物需氧量等指标评价了淮河水质。
Biochemical oxygen demand, BOD is necessary for water quality evaluation. It is an important index in measuring organic materials pollution.
生物化学需氧量bod是水质评价的必测项目，是衡量有机物对水质污染的重要质量指标。
Composite index analysis is based on the relative concentration of quality components in its environmental quality standards to judge the pollution levels of the water-quality status.
水环境质量评价指数法是根据水质组分浓度相对于其环境质量标准的大小来判断水的质量状况。
The grey system assessment method, air pollution integrated index are applied to evaluate the atmosphere, surface water, noise environmental quality of valley cities in western China.
本文首先采用灰色系统评价方法、空气污染综合指数等方法对中国西部河谷型城市大气、地表水、噪声环境质量进行了客观评价。
Based on the shortcoming of the method of average pollution index assessment, this paper put forward the method of active pollution index to assess the environment of polluted river water.
针对水环境质量的均值污染指数评价方法的缺点，提出了利用活性污染指数法来评价微污染水体环境。
Synthesis pollution equal criterion index, exceed multiple and exceed ratio were chosen as the index of synthesis assessments to the water quality effect.
选用综合污染等标指数、超标倍数和超标率等指标对水质污染状况进行评价。
Anionic surfactants in water can result in water pollution, it is one of the indispensable index in water monitoring.
大量的阴离子表面活性剂进入水体中可引起水质的恶化，已成为水质监测的一项必测指标。
The comprehensive pollution harm index of the water quality can be calculated with the aid of the general weighted contrast for the pollution harm partial indices.
提出用对比加权对污染损害分指数进行赋权的新方法，计算水质综合污染损害指数。
The comprehensive pollution harm index of the water quality can be calculated with the aid of the general weighted contrast for the pollution harm partial indices.
提出用对比加权对污染损害分指数进行赋权的新方法，计算水质综合污染损害指数。
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