查询词典 water pollution

This includes water resources development; the hydrological cycle; surface hydrology; geohydrology and hydrometeorology; limnology; salinisation; treatment and management of municipal and industrial water and wastewater; treatment and disposal of sewage sludge; environmental pollution control; water quality and treatment; aquaculture in terms of its impact on the water resource; agricultural water science; etc.

具体内容包括：水资源开发，水体圈，地表水文学，地下水文学，水文气象学，湖泊生物学，生活水、工业水和废水的管理和处理，污泥处理和处置，环境污染控制，水质量和处理，农业水科学和水产业对水资源的影响等。

As an often used physical model with good theoretical and practical values, StreeterPhelps model has been widely used to study water quality. However, in some special water areas the utilitization of StreeterPhelps model has some limitation as confirming reaeration coefficient often comes from tests in rivers with fast water flow speed with no consideration of wave effects. Furthermore, in practical research in Three Gorges Reservoir, the changing rule of COD appears abnormally. In some water areas far from pollution source, the value of COD changes with time, but does not follow the exponential attenuation rule. This phenomenon can not be explained by former modified StreeterPhelps model.

StreeterPhelps模型是目前进行河流水质研究常用的物理模型，具有良好的理论和实用价值，然而在某些特定水域，该模型的应用受到限制，主要原因是复氧系数的取定多在水流速度较大情况下得到的，而未考虑水面波动对复氧系数的影响，另外，在实际研究过程中发现三峡库区COD变化的规律出现异常：在离排污口相当远的水域，COD随时间变化趋势并不是指数衰减，而是在某个常值附近微小摆动，以往很多修正过的StreeterPhelps模型都无法解释这个现象。

Wastewater reclamation and reuse will not only control the water environmental pollution, but also realize the reclamation, reuse and recycling of material, energy and water, which has become the effective method to solve the water shortage and make the water resource used in sustainable way.

通过分析国内外大量的实践，提出污水是一种稳定可靠的、可再生的水资源，污水回收与再用能在控制水环境污染的同时，实现污水中物质、能量和水的回收，成为解决水资源短缺的有效措施，是实现水的良性循环的关键。

Its main purpose is under the grim situation of serious water shortages and pollution to introject the scientific use of water resources with the prosperous development of integrated real estate , to let reused water technology serve for the green real estate , and make water science and water culture to popularize to millions of people .

旨在通过在水资源严重短缺和污染的严峻形势下，把水资源的科学利用与蓬勃发展的房地产业相融合，使中水回用为绿色环保的房地产业服务，使水科学，水文化普及到千家万户。

The carrying capacity of water resources and water environment in Yellow River basin is faced with a huge challenge, such as vegetation destruction, water and soil erosion, riverbed run-up, watercourse shrinkage, water shortage, frequency breakage flow, severity pollution, water quality deterioration, trace to the source and sendiment, coast erosion and regradation.

植被破坏、水土流失，河床抬高、河道萎缩，水源匮乏、频繁断流，污染严重、水质下降，朔源淤积、海岸蚀退等表明黄河流域水资源与水环境的承载能力面临着极大的挑战。

The biological pollution of the non-indigenous organisms via ballast water was discussed in details, then some kinds of ballast water treatment measurements which have been in use or being investigated now were introduced, the research developments of the heat treatment of ballast water by marine engine's cooling water was presented particularly.

文章对由压载水引起的外来生物污染问题进行了较详细的阐述；之后介绍了目前已经应用或正处于研究中的各种压载水处理方法，并详细介绍了船舶冷却水加热处理压载水的研究动态。

The result shows that the level of the water quality in Wuliangsuhai Lake has been close to the fifth level from 2003 to 2005. Based on the grass type lakes character and economic loss rate of water due to pollution, the damage extent of utilizing functions of water in Wuliangsuhai Lake is assessed though investigation, monitoring and analysis from 2003 to 2005. Results show that water in Wuliangsuhai Lake has not been suitable for serving as a water source for drinking and swimming.

选用L.D詹姆斯的污染损失—浓度模型，根据2003年～2005年乌梁素海实测水质资料，对乌梁素海湖泊使用功能损害程度进行评价表明：乌梁素海水已不适宜作为饮用水源和游泳用水，作为人体非直接接触的旅游娱乐用水及渔业养殖用水也受到严重威胁(中损害，2003年为重损害)，乌梁素海湖水作为一般居住环境用水呈现逐年改善的趋势(重损害→中损害→轻损害)，湖泊功能整体损害程度相当严重。

To solve the problem of low water and ensure water resource utilization, it is significant to bulid the three ecological reservoirs at the upstreams of Lijiang River. In the meantime, water forest protection, society development for water-saving and pollution-decrasing can not be ignored.

解决漓江枯水问题，确保水资源安全利用，在上游兴建3个生态水库具有重要的意义，水源林保护与建设、社会节水防污力度加强也是不能忽视的辅助措施。

Particularly paragraph 5 generation products WXG-frequency conversion governor without pressure (non-smoking Cheng) pressurized water pipe network equipment to be built pools, water tanks, passed 50%-90% without extensive phenomenon, saving investment, no two pollution, fully automatic operation, continuous water supply, and many other advantages, and create a water supply equipment direct contact in the water pipe precedent and surrounded by five ministries to the Ministry of Science and Technology, 2000 national focus of new products.

特别是第5代产品WXG型变频调速无负压管网增压供水设备，以不用建水池、水箱，节电50%-90%，无跑冒滴漏现象，节省投资，无二次污染，全自动运行，停电不停水等诸多优点，开创了供水设备可直接串联在自来水管道上的先例，并被科技部等5部委授予2000年度国家级重点新产品。

The function of pollution control dispatching with water gates in improvement of water quality is analyzed, and some suggestions are made on the improvement of water quality by further use of the water conservancy project, such as prevention of river water interception, improvement of the self-purifying capacity of rivers, reasonable dispatching and full use of floods for separation of wastewater.

与此同时，通过水利工程调度合理配置水量，最大限度利用水体纳污能力，也是改善水质的一项重要措施。1 概况淮河流域地处我国南北气候过渡带，降雨时空分布严重不均，水旱灾害频繁。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。