This year's target for air pollution control is to raise the rate of days with air pollution index equaling or bettering grade II to 55 percent.

Forecast of air pollution index based on BP neural network

基于BP网络的空气污染指数预报研究

The industrial areas with the sources of pollution of the atmospheric air and the sources of possible accidental release shall be separate from the buildings with auxiliary, storage and amenity rooms.

有大气污染源和可能意外泄漏的工业区域应和辅助建筑、储存建筑和休息建筑隔离。

Rn is derived from radioactive elements in granitic sediments in the intermountain basin and granite base, which are the major sources of pollution.

氡的主要污染源是山间盆地沉积物中局部富集的放射性铀元素。

Finally, the paper based on the formation of the sources of pollution transmission standard products data collection and transmission instrument the whole certification process.

本文最后给出了基于污染源传输标准形成的产品-数据采集传输仪的认证。

The revised law on the protection of marine environment stipulates the introduction of the system to control the aggregated amount of pollutants in key sea areas and set quotas for the discharge of main sources of pollution.

重新修订的“海洋环境保护法”，对重点海域实施总量控制制度，对主要污染源排放数量实施配额制。

By analyzing, the ways to reduce the sources of pollution and the residue could be found. Thus it can decrease the outgassing amount of the metal parts in the tube, and effectively improve the performance and working life of the intensifier.

分析找出减小污染和减少残留物的方法，进而减小管体内金属件的放气量。

The main sources of water pollution were sewage and industrial wastewater.

我国水污染的主要来源是生活污水和工业废水。

The environmental evaluation system of non-hazardous vegetable bases are discussed, the sources of pollution factors of production bases and harms on vegetables are analyzed.

本文初步探讨了无公害蔬菜种植生产基地的环境评价体系，分析了基地污染因素的来源和对蔬菜造成的危害。

The major sources of pollution are animal wastes, antibiotics and hormones, chemicals from tanneries, fertilizers and pesticides used for feedcrops and sediments from eroded pastures.

主要的污染源是动物粪便、抗生素和荷尔蒙、制革业的化学物品、饲料作物使用的化肥和农药以及被侵蚀草场的沉积物。

Water quality recovery strategy, in addition to the river ecological restoration measures, should pay attention to controling the sources of pollution, the benefits of hydraulic structures for water quality improvement also should be made use of.

水质恢复策略，除了河流生态修复措施外，应注重污染源的控制，水工建筑物对水质的改善作用也应充分利用。

Water quality model is developed to simulate stream pollutants allocation and its integration has helped to develop TMDL modeling procedure for nonpoint and point sources of pollution.

建立用于TMDL的点源和非点源污染模拟的水质模型以模拟河流污染物的分配；

According to domestic and international management experience, lake has its own characteristics, it is different from water bodies and rivers, the management of lake eutrophication should be followed with the line which combine the sources of pollution conformity with ecological restoration.

根据国内外众多治理经验，湖泊有其自身的特点，与河流水体不同，对湖泊富营养化的控制与治理应当遵循控制污染源与生态修复相结合的路线。

From the construction period and operation period the possible sources of pollution, put forward the optimized design scheme, green vegetation, strengthen construction management and strengthen the operational management Mitigation Project on environment influence countermeasure.

从施工期间和运营期间可能产生的污染源，提出了优化设计方案，绿化恢复植被，加强施工管理及加强营运期管理等减缓工程对环境影响的对策。

Properties, Sources of Pollution and Determination of Organo-tin Compounds

有机锡化合物的性质、环境污染来源及测定方法

First returning farmland to forest, adjust the upper and middle reaches of the production methods, to solve problems in peri-urban forest management, and control sources of pollution.

首先要退耕还林，调整中上游的生产方式，解决城郊林管存在的问题，并控制污染源。

Clarifying the research ideas according to different sources of pollution is the key to solve the problem, based on which a fundamental framework is established.

针对不同污染来源，厘清农田生态环境补偿机制的思路是解决本问题的关键。

The marine environment is rich in chitin which is the component of shrimps and crabs. If these substances are not treated, could become the organic sources of pollution.

海洋环境中含有丰富的几丁质，为虾壳、蟹壳的主要成分，这些物质如果不经过处理，还有可能成为有机污染源，海洋的这种特殊生境，使得从海洋环境中分离筛选产几丁质酶真菌成为可能。

It puts forward to researching the environment of sea water culture form the sea water quality 、 sediment quality and environmental appropriateness of breeding species three respects. The second part systematically introduces Lianyungang marine natural conditions, the main sources of pollution of marine environment and the layout and

第四部分运用对连云港海水水质、海洋沉积物质量、主要养殖品种环境适宜性构建的模型的计算结果，分别评价上述三个方面的时空变化特征，并就连云港

There are plenty of other sources of pollution than cars, and life is short so we should enjoy ourselves anyway.

除了汽车，还有其他许多污染源。人生短暂，我们总应该享受。

Monitoring reports and all the original records, materials are classified archives for future reference. The on-site inspection is an important step in environmental monitoring sources of pollution.

监察报告以及所有的原始记录、材料分类归档备查。