污染

In such cases, too much resources are invested in polluting activities and too few in pollution abatement.

在这种情况下，过多的资源被投资在污染活动中，而用于减少污染治污的又太少。

Only by technological progress in abatement and regulation can environmental quality be improved.

因此本文在加入环境约束的前提下，对索洛模型进行研究，即所谓的绿色索洛模型，提出经济增长和环境污染的关系，并据此得出污染排放变化的路径。

From the beginning of the 1980's the visibility dramatically deteriorated,obviously increasing haze weather,in which there are three big fluctuations,respectively showing the periods of pollutions of dust,sulphate and dust,fine particle from photochemical process and sulphate and dust accompanying the developmen...

自1980年代初开始，该地区的能见度急剧恶化，灰霾天气显著增加，其中有3次大的波动，分别代表广州地区经济发展相伴随的粉尘污染、硫酸盐加粉尘污染、光化学过程的细粒子加硫酸盐加粉尘的复合污染时期。

The main contents of the present paper include: 1、The mechanism of fouling accumulation and the effects of fouling and slagging on boiler performance are analyzed. The model of fouling increasing is developed on the basis of sediment rate and denudation rate. The fouling monitoring models for boiler furnace and convective sections based on heat balance, the ones for air heater based on converted pressure difference are given. The implement results show that these models can reveal the cleanliness of boiler heat transfer surface. 2、The disadvantages of the model for boiler furnace fouling and slagging monitoring based on heat balance are discussed, and the calculation of radiant heat flux is considered as the primary difficulty.

主要包括以下内容： 1、分析了锅炉受热面污染形成的机理，从灰污的沉积率和剥蚀率角度出发，推导了受热面灰污增长的基本模型，分析了灰污热阻随积灰时间和烟气流速变化的规律，并通过大量现场试验，得到了沉积常数与时间常数的取值范围； 2、针对炉膛、对流受热面和空气预热器等不同受热面的传热特性，分别建立了基于热平衡和折算压差的污染在线监测模型，经实践验证，其监测结果能够满足现场工程应用的精度要求； 3、分析了基于热平衡原理的辐射、半辐射污染监测模型的不足之处，指出了机理模型因对炉内辐射换热量计算不准确，导致对以辐射换热为主的炉膛和以半辐射半对流的屏式过热器监测效果不够理想。

The TPH pollutants of non-rhizosphere decompositted differently in environment with plant. The gradation rate of low concentrate pollutants was much higher than that of high pollutants level. The decomposition rate of TPH pollutants in rhizosphere was higher than that in non-rhizosphere, and the rhizosphere effect deceased with degree of pollution.

在有植物存在的条件下，非根际土壤石油污染物降解的变化表现为：在低污染水平，污染物的降解率明显高于高污染水平，根际土壤的降解率高于非根际土壤的降解率，且随着污染水平的提高，植物的根际效应减弱。

The formula concerning how to control the oil contamination of coal mining machine hydraulic system was built based on the theory of the contamination control ,it is shown that the change of the oil contamination is in index regularity.

根据污染控制理论导出了采煤机液压系统油液污染控制方程，由方程知液压系统油液污染度的变化是按指数规律变化的，并分析了影响采煤机液压系统油液污染度的主要因素，提出在液压系统的设计阶段就要考虑液压系统的过滤净化性能，正确控制液压系统油液污染。

In this paper the reason of the water pollution is analyzed through investigation and evaluation on the present situation of Yulin River in North Chongqing area, and then a proposal on the prevention and cure measure of water...

通过对重庆市渝北区御临河水环境污染现状调查与评价，分析了御临河水环境污染的原因，提出了御临河水环境污染防治对策。

Then the numerical simulation model of the oil pollutant migration in this kind of water_bearing syst...

应用所建模型对污染质的污染趋势进行了预测，并提出污染控制措施。

On the basis of analyzing status of water environment in rural region of Sichuan,emphasize on protecting rural water environment,sustainable development,and some constr...

重点分析了四川省农村水环境污染现状，强调要保护农村水环境，走可持续发展之路，并针对性地对农村地区的生活水污染、养殖废水污染、湖库以及重点小流域污染等提出建设性对策。

The vehicle development from the perspective of the current environmental problems, atmospheric pollution focuses on the current status of the environmental impact of vehicle exhaust and hazards analysis, and management of vehicle exhaust from the perspective of atmospheric pollution control measures and methods, Then on the theory and practice of how to develop natural gas vehicles of the main issues of tentative study that the development of natural gas vehicles is vigorously addressing vehicle exhaust pollution to the atmosphere of the best ways.

内容摘要：本文从汽车发展的角度来考虑当前的环保问题，着重针对大气污染的现状，对汽车尾气对环境的影响及其危害进行分析，并从治理汽车尾气的角度提出大气污染治理的措施与方法，然后对如何发展天然气汽车理论和实践中的主要问题进行了尝试性的研究，指出大力发展天然气汽车是解决汽车尾气对大气的污染问题的最好办法。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。