The annual water quality reports that utilities are required to send customers provide a partial picture, the study says, as they contain no information on unregulated chemicals.
这项研究表示，自来水公司会按要求每年向客户提供年度水质报告，包括部分照片，但他们没有提供关于法律限定之外化学物质的任何信息。
This study is part of efforts by the U.S. Geological Survey's National Water-Quality Assessment Program to monitor the quality of the nation's groundwater and surface water.
这项科学研究是美国地质调查局国家水质评估项目的一部分，旨在对美国地下和地表水质进行检测。
A three-year study of the nation's drinking water quality has found more than 200 unregulated chemicals in the tap water of 45 states.
美国一项长达三年的全国饮用水调查研究发现，有45个州的自来水中含有202种没有设定法律限定标准的化学物质。
The objective of developing an experimental model of the water distribution network is to study the hydraulic properties and water quality of the actual network.
建立供水管网试验模型的目的是便于研究真实城市供水管网中管流的水力特性和水质情况。
The hydrology is a science to study natural water movement, the change state and rule of the water quantity and quality in time and space.
水文是研究自然界水的运动、水的数量和质量在时间和空间上变化状况及变化规律的一门学科。
A field study was conducted to determine the relationships between Crop Water Stress Index (CWSI), yield, and quality of cotton under drip irrigation with mulch.
通过田间试验，研究了膜下滴灌棉花的作物产量、品质和作物缺水指标(CWSI)定量关系。
Pot experiment was conducted to study the effects of nitrogenous fertilizer forms on quality of amaranth under different water treatments.
通过盆栽试验，研究了不同水分条件下氮肥形态配比对苋菜品质的影响。
Field experiments were conducted to study the impact of rejuvenated water irrigation on the quality of tomato, the heavy metal element in fruit and soil.
通过田间试验，分析了再生水灌溉对番茄果实品质、重金属以及土壤重金属的影响。
In order to ensure the adequate and safe supply of quality water, it is imperative to study the adverse effect of ageing of pipes on water supply capacity.
为了保证足量、安全和优质供水，研究给水管道老化对输水能力降低的影响是十分必要的。
So study on the optimal allocation of regional water quality and water quantity is important and has theoretical and practical meaning.
因此，研究区域水质-水量联合优化配置具有重要的理论和现实意义。
The effective methods are discussed to enhance the quality and distance basing on the study of transmission model of light in water channel.
本研究以水下信道光的传输模型为理论依据，探讨提高水下成像距离和成像质量的有效方法。
Pilot study was conducted to improve water source quality in Lake Taihu by an assembled medium.
采用组合介质进行改善太湖水源地水质的中试研究。
Objective To study the characteristic cluster structure of good-quality natural drinking water.
目的研究优质天然饮水的团簇结构特征。
Case study showed that the models provided here are quite suitable for river water quality simulation and risk assessment.
实例研究表明，所建模型对于河流水质模拟与风险评价具有很好的适用性。
Study result showed that it is feasible in theory and reliable on conclusion using unascertained mathematical theories to simulate river water quality and evaluate its risk.
实例研究表明，以未确知数学理论研究河流水质风险问题，理论上是可行的，评价结果是可信的。
Process the sauce at home and abroad to study less, but also fails to address the water quality characteristics identify appropriate treatment.
目前国内外对酱油处理工艺的研究较少，还未能针对其水质特点确定适宜的处理工艺。
The third, study the farming techniques used by the agriculture and mining consortium and by the American Indians to determine which have the least harmful effects on the water level and quality.
第三，研究农业、矿业公司、及土著印地安人的生活方式，以确定哪些措施对水量与水质的影响最小。
The causes of abnormal quality of environmental water due to excavation of the underground powerhouse group of a pumped storage power station were analyzed in this study.
分析了某抽水蓄能电站地下厂房硐室群开挖引起环境水水质异常的成因。
The study on the spatiotemporal evolvement of wetland ecosystem water environmental quality and its related affecting factors is one of the hotspots in theoretical and applied wetland research.
湿地生态系统水环境质量时空演化及其影响因素分析，是湿地理论和应用研究的热点领域。
The results of this study could be as the bases for operational satellite remote sensing of water quality of lake.
本项研究为进一步开展湖泊水质业务化卫星监测打下了基础。
Finally, this study concluded that improving traditional process and completing new technologies are the future developing trend and the guarantee of improving water quality.
最后总结了改进传统工艺与完善新技术是今后的发展趋势，是有效提高饮用水质量的保证。
This study investigated fresh milk, fermented milk and milk powder, show that the transmission of light, oxygen gas, water vapor are the main factors influencing quality of dairy products.
通过对鲜乳、发酵乳和乳粉三大类进行介绍，说明光照和氧气、水蒸气的渗透是乳品品质的主要影响因素。
Through the analysis on the materials of monitoring water quality of Xihu Lake in Dali fron 1991 to 1995, the article makes a study on the changing trend of its water quality.
通过对1991 ~ 1995年大理州西湖水质监测资料的分析，研究了西湖水质现状及其变化趋势。
Research on mass cultivation of microorganism was performed as a part of the study on the microorganism addition to improve the contaminated water quality of Wai Huan River.
微生物菌剂规模化培养技术的研究，是投菌法改善外环河水质项目研究中的一部分。
The study of the transportation of the pollutant in the reservoir is very important to enhance the water supply quality management and the water supply security of the reservoir.
研究水库中污染物的运动规律对于加强水库供水水质管理，保障水库供水安全非常重要。
We study how to control the solid grain, microorganism and water quality of tap water, and put the research about the solid grain contamination into emphasis.
本文对自来水固体颗粒污染物、微生物和硬度等三种主要污染物的控制方法进行了研究，其中着重研究了固体颗粒污染物的控制理论和方法。
The paper deals with the preliminary study on the simple purification process of water quality in the estuarine area and gives a simple treatment of water for larval nursing of Penaeus sinensis.
本文就河口区的简易水质净化方法作了初步探讨，并提出了中国对虾育苗用水的简易处理方法。
Two trials were carried out to study the water activity adsorption isotherms and laws in quality change of four moulding feedstuffs.
试验分为水活性等温吸附曲线研究和霉变后品质变化规律研究两个部分。
Two trials were carried out to study the water activity adsorption isotherms and laws in quality change of four moulding feedstuffs.
试验分为水活性等温吸附曲线研究和霉变后品质变化规律研究两个部分。
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