污染物

Elementary discussion on ventilation mode of the power house of hydropower station in river channel;2. According to the State Standard of Indoor Air Quality GB/T18883-2002,the air pollutants in the passenger car cabin were measured,and the influence of temperature,the type of car,the time since the manufacture date and the ventilation mode on the air quality was evaluated.

5倍；车内污染物的质量浓度随时间延长不断衰减，约10 d后趋于稳定；发动机运转时客车内污染物质量浓度升高，车内的空气质量变差；自然通风与循环通风均可使车内污染物质量浓度迅速下降，但自然通风方式效果更好。

Based on the testing and analyzing the organochlorine insecticides (such as HCHs, DDTs and dieldrin) and PCBs contents in the sediment and water body covered the sediment, this paper plots and describes the various organic pollutants distribution, simultaneously analyzes the organic pollutants sources according to the main pollution sources along the coastwise of Daya Bay.

本文通过对大亚湾海域上覆水和沉积物中有机氯农药(HCHs、DDTs和狄氏剂等)和多氯联苯等有机污染物含量的调查分析，分别对各有机污染物的分布状况进行了描述，同时根据目前大亚湾海域及其沿岸主要污染源的分布状况对各有机污染物的来源进行了初步分析。

The rationality of selecting different type of cement kiln dust chamber fixed in inlet and outlet based on its invest,running cost,adaptability on pollution control,stability,dust removal rate,abnormal discharge,discharge volume,air environmental capacity,environmental quality standard and climate condition on the angle of environmental impact.

从水泥窑大气污染物对环境影响的角度，分析了新型干法水泥回转窑窑尾和窑头除尘器选型的合理性，包括投资、运行成本、对污染物治理和工况的适应性、操作和维修性能、可靠性、稳定性、除尘效率以及非正常排放、污染物排放量、大气环境容量、环境质量标准、气候条件等对环境的影响程度。

With calculation of the 3D flow affecting the non-submerged groyne, the comparison between calculative and experimental data means that the dynamical compressive models can accurately simulate the free surface and the flow field around groyne.

污染物在丁坝附近的扩散模拟显示了丁坝后的回流区减慢了污染物浓度的衰减，丁坝附近水流的湍动使得冲淤条件下污染物悬沙吸附量和溶解态浓度明显增大。

The so called K theory of atmospheric diffusion is used for discussing the vertical distribution of CO in street(includes the viaduct-crossed streets), and the results indicate the vertical concentration distribution of CO in both types of the street can be predicted as exponential functions of dimensionless height.

由于绿化型式对城市大气环境和景观效应均有重要影响，但多数已有的街道内部污染物扩散模式均未考虑行道树树冠对交通污染物扩散的影响，本文以CO为环境示踪物，通过对西安市典型街道的实测和数据分析，讨论了绿化型式对街道污染物扩散效果的影响，并据此对街道绿化的生态设计给出了建议。

At the same time it realizes the pollutant component visually, draws out the equivalence line chart of pollutant component.

同时利用Matlab程序，实现了矿区污染物组分浓度的区域可视化，绘制出了污染物组分含量的等值线图，分析了污染物的分布和扩散情况。

Based on depth averaged mathematic model of flow and pollutant tr ans portation in non orthogonal curvilinear coordinates , the k-ε double equat ions' turbulence model and the coupling arithmetic of velocity water depth are a dopted, which are applied to the numerical simulation of the flow and the contam ination diffusion transportation.

基于非正交曲线坐标下水流与污染物扩散输移的深度平均数学模型，采用k -ε双方程湍流模型和速度—水深耦合算法，应用于实验室连续弯道的水流及污染物扩散输移的数值模拟，分别计算了流场及岸边和中心污染物排放的浓度场，得到与实测值吻合良好的计算

Reductive dechlorination of polychlorinated biphenyls by zero-valent metal ;2. Zero-valent metals can be used to treat many kinds of pollutants including Organohalides,heavy metal,nitro-aromatic compounds,azo dye,perchloride and nitrate etc.

介绍了零价金属在处理环境污染物中的具体应用，包括卤代有机物、重金属、硝基芳香族化合物、偶氮染料、高氯酸盐以及硝酸盐等，指出零价金属可以通过还原和混凝吸附等作用有效地治理环境污染物，并分析了零价金属处理污染物的特点和应用前景。

The major pollutants in the models 25B, 25G and 25K are bacteria in the air. The major pollutants in the model 25T is air formaldehyde. The major pollutants in hard seat carriage are CO2 and bacteria in the air. The major pollutants in soft berth carriage is air formaldehyde.

结论］CO、CO2和PM是25B型车的主要污染物；空气细菌是25B、25G、25K型列车的主要污染物；甲醛是25T型列车和软卧车厢的主要污染物；CO2、空气细菌是硬座车厢的主要污染物。

D. Operators engaged in receiving ship pollutants with ships shall have at least 1 Chinese ship of 300 tons or above which is fit for receiving the ship pollutants; those engaged in receiving ship pollutants with the port shall make sure that the port receiving facilities are in normal conditions; and those with vehicles shall have at least 1 special purpose vehicle for garbage receiving, transport and clearance.

四使用船舶从事船舶污染物接收的，应当拥有至少一艘不低于300总吨的适应船舶污染物接收的中国籍船舶；使用港口接收设施从事船舶污染物接收的，港口接收设施应处于良好状态；使用车辆从事船舶污染物接收的，应当拥有至少一辆垃圾接收、清运专用车辆。

Plunder melds and run with this jewel!

掠夺melds和运行与此宝石！

My dream is to be a crazy growing tree and extend at the edge between the city and the forest.

此刻，也许正是在通往天国的路上，我体验着这白色的晕旋。