河道水质 river water quality(8)   river water quality      Research and Application of Digital River Water Quality Forecasting and Pre-warning System      数字河道水质预警预报研究及应用 短句来源      Study on application of grey relation analysis method in river water quality appraisal      灰关联分析方法在河道水质评价中的应用研究 短句来源      On the basis of sewage interception,the river water quality is improved with water recharge and purification to achieve the specified Water Standard Level Ⅴ.      在截污的基础上,通过补水、水质净化等一系列措施,使河道水质变清,达到规定的地表水Ⅴ类标准; 短句来源      This paper describes the current status of urban river water pollution, analyze it's causes, and then present major measures to settle the problem, therefore, the paper is significant in managing urban river water quality and improving environment.      针对城市河道水质污染现状,分析水质污染原因,提出整治对策,对城市河道水质治理和水环境改善具有一定的现实意义。 短句来源      Based on the theories of black and odorous water,the present researches and the background of river water quality in the urban districts of Shanghai,a new criterion was established. The new criterion is composed of five indexes,including DO,COD_(Mn),BOD_5,NH_3N and TP.      在综合考虑水体黑臭的产生机理、现有国内外研究成果以及上海中心城区中、小河道水质现状的基础上,选取造成平原河网地区水体黑臭的关键指标DO、CODMn、BOD5、NH3-N和TP构建水体黑臭预测评价指标体系。 短句来源 更多          “河道水质”译为未确定词的双语例句      The BOD5 of drain water will have a good change from 1.6 mg/L (natural river) down to 0.3 mg/L,while DO will retain with little change.      下泄水质与自然河道水质对比分析发现,BOD5浓度在建库前后有明显的差异,由1.6mg/L下降到0.3mg/L左右,而DO浓度变化甚小. 短句来源      Numerical simulation and prediction of water quality for water supply from Yellow River to Tianjin      引黄济津河道水质数值模拟与预测 短句来源      The Water Pollution of Urban River and Its Settlement      城市河道水质的污染与整治 短句来源      Water environment protection measures and pollution control planning was proposed based on water environment features and the existing issues.      最后根据河道水质污染特征和存在问题 ,从流域水资源保护体制、水环境规划和保护等方面提出了相应综合防治对策。 短句来源      Effects of simulated urban river embankments on water purification and stabilization      护砌方式对模拟城市河道水质净化及稳定化的影响 短句来源 更多          相似匹配句对      Simulation of Water Quantity and Water Quality for Cross River      十字交叉形河道水流水质模拟 短句来源      The Water Pollution of Urban River and Its Settlement      城市河道水质的污染与整治 短句来源      increasethe water reuse rate;      保护水质； 短句来源      River course change;      河道变化; 短句来源      (10)the quality of water;      10)水质; 短句来源 查询“河道水质”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 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。   river water quality Large built-up areas located downstream of the Rybinsk Hydroelectric Plant are shown to adversely affect the river water quality. 例句来源       Environmental and sanitary estimation of small-river water quality is made in the zone of influence of gold-mining facilities in Krasnoyarsk Region. 例句来源       Multilevel Models in the Problems of River Water Quality Management 例句来源       Comparative analysis is applied to different management methods (compulsion, inducement, persuasion) in two- or three-level dynamic hierarchic models of river water quality in the cases of point sources of pollutants. 例句来源       A River Water Quality Model for Chlorophyll and Dissolved Oxygen that Accommodates Zebra Mussel Metabolism 例句来源       更多                    A calculation method has been developed for predicting water quality in a canalized river due to the change of hydraulic conditions after the canalization of the river, and a mathematic model has also been established including the consideration of the boundary reflection and the transverse dissipation. Examples have confirmed the reasonability of this method in calculating pollutants concentration near banks after canalization. This paper has practical value for selection of near bank intake projects and p...             本文从天然河道成为渠化河道后水力条件的改变,提出了渠化河道水质预溯的计算方法,并推导出包括边界反射及其横向扩散在内的数学模型。同时,用实例证明了采用该法计算渠化后河道岸边浓度的合理性,对岸边取水工程的选择和水环境预测都有实际的意义。 文摘来源          Based on the principle of mass balance, a water quality expression of one water segment connecting with anothers is developed in this paper, It provides a real and effective numerical method to solve each section quality of a fork in a river network. By using the control valume method, it is easy to transform partial defferential equation into algebraic equation. The water quality COD changing with space and time in a river network is modeled. The computational results are good in agreement with the observ...             本文导出了一个联系河段水质与其相邻河段水质之间的表达式,从而方便地把一个偏微分方程离散为一个代数方程。文中模拟了某叉口潮汐河道水质COD的时空变化规律,计算值与实测值吻合较好。 文摘来源          Using the micronucleus technique in the root tip cells of broad bean, the author tests and analyses the water quality of the five rivers in Suzhou proper. The results show that the mutagencity exists in the water of all rivers tested. It is indicated that the five rivers are polluted to varying degrees.             应用蚕豆根尖细胞微核诱变法,对苏州城区的五条河道水质进行了检测分析,发现均有一定的致突变性,说明其水质都有不同程度的污染. 文摘来源   << 更多相关文摘         相关查询: 河道水质模型 河道 水质 浮选水质 曲流河道 河道淤泥 水质比较 通航河道 水质检验 废弃河道 河道带 摆动河道  对查询结果不满意

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