污染物

In this paper,the intimate data method is used to assess the water quality of the South Feihe River. Fourteen monitoring points are taken,and the COD cr , TP, NH 3-N are utilized as assessment items. The assessment results are compared with those obtained by the vector module method,which indicates that the presented method is practical. An order of the contamination degree of monitoring points is also given.

文章对合肥市南淝河水环境质量用密切值法进行了综合评价，评价项目取该河14个监测点的主要污染物CODcr、TP及NH3-N等3项监测指标作为评价因子，得出了评价结果并对污染程度进行了排序；与向量模评价法进行比较，结果表明该方法切实可行。

Students and community leaders help plant seedlings to vegetate a rain garden in Kensington, Maryland.

图2。在Kensington，马里兰，研究团体的领导和学生帮助树苗建立灌溉园，用以增加雨水的渗透力和最大限度的降低营养物质的流失或污染物富集水体循环到降雨系统而进入溪水、河流中。

The mechanism of disease resistance is discussed from four aspects,that is, for restraining pathogenic microorganism, for preventing venenous substance such as amine and ammonia from accumulating, for stimulating the system of immunity and for eliminating contamination and purifying environment.

摘 要：从4个方面论述了微生态制剂对水产动物的抗病机理：抑制病原微生物；能防止有毒物质胺和氨的积累；刺激免疫系统，提高免疫力；消除污染物，净化环境。

The water bio-toxicity early-warning system is developed by our own company. Through the moderninformation technology and the the sensitivity character of hydrophily biology in venomousness contamination, this system can achieves remote ,real-time pre-alarm. It is a safety, dependable, and high cost-effective online bio-toxicity monitor.

公司自行研发的水质生物毒性预警系统通过利用水生生物对有毒污染物敏感、综合的特点，运用现代化信息技术实现远程实时预警，是一款安全、可靠、性价比高的综合应用生物毒性监测系统。

The simulation test suggests that this system is able to veraciously characterize diffusing scope , concentration distribution and other situations of air pollutants in course of emergency .

通过模拟测试，该系统能够准确地表征城市突发性大气污染事故中污染物的扩散范围，浓度分布等情况。

And then through analyzed the component of the pollutant in the region's groundwater, and considered the good and bad points of each assessment method, we adopted the fuzzy comprehensive evaluation method, and estimated the vitiation of the ground water, which result is conform with the actual degree, and has realized the of the fuzzy appraisal.

本文针对煤矿开采对地下水污染的问题，首先根据研究区域自然地理与水文地质条件分析了煤矿开采对地下水污染机理，然后通过对研究区域地下水污染物组分的分析，考虑各种评价方法的优缺点，采用模糊综合评判法，对煤炭开采对地下水的污染做出了比较合乎实际的评价，并实现了模糊评价的电算化，同时利用Matlab分析了煤矿开采对地下水污染的趋势。

Sorption-desorption, leaching, volatilization and degradation of organic pollutants in soil are reviewed in this paper.

本文介绍了有机污染物在土壤中的吸附与解吸附、渗滤、挥发和降解等行为过程。

Sorption is a crucial process for PAHs bioavailability, volatilization and transport in soil.

土壤吸附是控制其挥发、运移和降解的关键因素，老化则是缓慢吸附的过程，对有机污染物的生物有效性有重要的影响。

Based on the previous research, this article discussed the sulphide, the nitrate, organic pollution heavy metal and volcanic dust, etc., which tie up to the human activity.

本文在总结前人研究的基础上，重点讨论了硫化物、碳黑、氮氧化物及硝酸盐、有机污染物以及重金属等大气中与人类活动密切相关的微粒物质

This article makes the comprehensive analysis on the organic contaminants in acid wastewater in the acetaldehyde unit by means of SPME, GC／MS, GC and volumetric analysis, and tries to find possibility of recovery of acetic acid.

采用SPME、GC／MS、GC及容量分析技术对乙醛装置酸性废水中有机污染物进行了综合分析，探讨了回收乙酸的可行性。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。