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

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。

Other important domestic sources of air pollution are:

其他重要生活污染源有：

But Qin Boqiang, a researcher at the Nanjing Institute of Geography and Limnology, said the government should focus on controlling the sources of pollution instead of treating it after it happens.

然而，中科院南京地理与湖泊研究所研究员秦伯强表示，政府应该加强污染源的控制而不是在污染的治理上。

And I also worked in my local village committee, also took part in the national census, other sources of pollution, with a certain degree of working ability, but also accumulated some experience.

曾在当地村委员会实习过，也曾参加过全国污染源普查工作等，具备了一定的工作能力，也积累了一些经验。

Let the technology do no harm to the social environment in the application process, and can fully play its role in order to make the necessary land-based sources of pollution source prevention.

因为生态技术的补充，在应用科技的过程中既不损害社会环境，又能充分的发挥作用，从而对陆源污染产生的源头方面进行必要的防治。

Since we dig out the root causes of land-based sources of pollution problems from the philosophical side, we should seek the solution from the philosophical.

既然从哲学层面挖掘出了陆源污染问题产生的根源，那就应该从哲学上寻求解决之道。

And the plant had a two-way transport function of PAHs, PAHs in rhizosphere soil and plant stem leaves related to a certain extent, their sources of pollution had similarities.

根际土壤与植物茎叶PAHs含量及组成在一定程度上存在相关，说明他们的污染来源有相似性。

Through flue gas monitoring, we can identify the key sources of pollution, at the same time monitoring the pollution sources real-time.

通过烟气监测还可以确定重点污染源并对污染源进行实时监控。

Fundamentally improving the quality of the river water not only need to cut off the external sources of pollution, but also address the problems of internal pollution from the sediment.

要从根本上改善河水水质，不仅要切断外部污染源，还必须解决水体底泥的内部污染问题。

NO x is about 2 times as much as SO 2. The source emission was main reason for air pollution in Beijing.

各高度SO2和NOx之间的关系有较好的一致性，NOx大约为SO2浓度的2倍或2倍以上；污染源排放是造成北京城市低层大气空气污染严重与否的主要原因之一；

Based on K-ε turbulence model, two ventilation patterns are discussed for researching hybrid ventilation models. The indoor 3D air temperature fields and the pollutant CO_2 concentration distribution are studied by CFD simulation in a room where pollutant source and centralized heat source are laid out.

为了研究多元通风的基本模式，基于K-ε模型、针对两种不同通风方案，对内设污染源和集中热源的房间内的三维温度场以及污染物CO2的浓度分布进行了数值模拟分析。

Sewage COD on-line monitoring instrument of so-and-so chemical fertilizer limited company in Xinjiang by way of illustration, this paper compared on-line monitoring datum with laboratory potassium dichromate determined datum, discusses comparison and analyses method of pollutant on-line monitoring.

以新疆某化肥有限公司污水COD在线监测仪为例，用在线监测数据与实验室重铬酸钾法测定数据进行比对分析，对污染源在线监测的比对分析方法进行探讨。

It is concluded that application of these methods is helpful to implement the total emission control planning schemes successfully, to control pollution effectively, and to ensure sustainable development of economy.

指出将B值法和平权后剩余环境容量分配法相结合确定各污染源的平权允许排放量将有助于总量控制规划方案的顺利实施，有效地控制污染，改善环境，使经济得以持续发展。

In this thesis, based on experiment model, by the way of the Fluent software the physical model and maths model of single-polluting heat source and multi-polluting heat sources in small room are established.

本文针对小空间置换通风系统，以本校置换通风实验室为研究对象，利用Fluent软件建立了单热污染源和多热污染源的三维物理和数学模型。

Among three principal component factors ( f_1, f_2, f_3), f_1 contributed 37.71%, which perhaps represented the external sources of pollution.

主成分因子（f1，f2，f3）中，f1的贡献率达37.76%，其可能代表的是外来污染源的影响；