污染

The present business card printing and membership card making business in the widely-used or traditional solvent-based inks, solvent-based inks from paints, solvents, binders, fillers and adjuvant, solvent used mainly aromatic hydrocarbons, esters, ethers, flavoniod etc, these toxic solvent, it finds that, in the packaging of food, medicines, and cosmetics, and so on; and a volatile, with a stronger hen'egg cretonne, will pollute the environment and the health of workers; solventing and imflammable, there is the production of a security risk.

目前制卡和会员卡制作行业中广泛使用的还是传统的溶剂型油墨，溶剂型油墨由颜料、连结料、溶剂、填充剂和辅助剂组成，所用的溶剂主要是芳香烃类、酯类、酮类、醚类等有机溶剂，这些溶剂大都具有毒性，会污染所包装的食品、药物和化妆品等物品；且具有挥发性，有较浓的刺激性气味，会污染环境并影响工人的身体健康；有机溶剂易燃易爆，存在着生产安全隐患。

Studies were carried out to investigate the response of different organic pollutants to streaming current when the raw water was coagulated, the test sensitivity of streaming current and the effect of set point of the control system.

对流动电流混凝投药控制技术应用于受有机物污染的水中进行了试验，研究了有机污染物对流动电流响应混凝剂投量的变化规律、流动电流检测灵敏度、以及控制系统的给定值的影响，初步探讨了流动电流混凝投药控制系统在受污染水源水中的适用性问题。

A number of engineering practices and studies have proved that this method is a good one to decontaminate polluted water, which not only is effective, but also can protect ecology environment and avoid secondary pollution.

大量的工程实践及研究证明，该方法是一项既行之有效又保护生态环境、避免二次污染的净化污染水体的好方法。

Inoculation of effective degraders to the modified polluted soils spiked with 2-nitrophenol was carried out by batch culture. The concentration of 2-NP、pH values and the number of 2-nitrophenol degrader were monitored in the experimental period to understand the variation of test strains.

将试验菌株接种於模拟污染土样中，进行批次生物降解实验，监测实验过程之2-硝基酚的菌数、浓度及pH值，并研究外加硝酸钾和氯化铵及混合菌种培养对於模拟污染土样之影响加以探讨。

Inactivation of plant virus and the indictor of animal virus by disinfect agent, mechanism of removing and inactivation of viruses by hydroxide modified sand pillar.4. 1. The results of the different microorganism resistances to the disinfect agent of chlorine shown that the indictor of E. coli usually used to evaluation the water body polluted by human deject is no useable.

4.1。不同微生物对自游氯消毒的抗性显示，大肠杆菌作为病毒污染指示物及水体环境病原微生物危险性评估的指标已失去真正的意义，而B.fp则是一个更为合理与科学的水体病毒污染与去除的指示物。

Non-point Source Pollution is defined as a kind of water pollution, caused by deliquescent or solid pollutant from runoff through indefinite locations.

非点源污染是指溶解的或固体的污染物从非特定地点通过径流过程而汇入受纳水体引起的水体污染。

The chemicals used during depolymerization and reuse of PET are inexpensive and comparatively less harmful to the environment, and thus oVer advantages in the chemical recycling of polyes-ter waste fibers.

所使用的化学品，在结聚和重用的路线是经济和低污染的，并且克服了回收使用化学纤维的污染和高能耗的弱点

The effect of spectra resolution on the detected characteristic absorption structure of gaseous pollutants and the variation of differential cross section of gaseous pollutants with the change of resolution are studied.

主要研究了光谱分辨率对污染气体被检测到的特征吸收结构形状的影响，以及差分吸收截面随分辨率的变化趋势，从而确定了光谱分辨率对污染气体最低可检测浓度的影响，通过研究分辨率与光强的关系，确定了分辨率与信噪比的函数关系式，得出了DOAS测量NO2，O3和SO2的最佳信噪比范围，对多种污染物标准气体进行了同时监测，计算出标准气体在不同光谱分辨率下的测量误差，确定了对NO2，O3和SO2监测的最适用的分辨率范围。

It includes:the items and methods of the investigation into motor vehicle exhaust emission; how to calculate the emission factor;how to choose and set the atmospheric pollutants diffuseness model in urban street;how to calculate the quantum of vehicle exhaust emission and the concentration of traffic pollutants diffuseness in street in traffic network,and how to evaluate traffic pollution of traffic network load.

以可持续发展的城市交通规划理念为基拙，探讨了城市交通规划过程中机动车对空气污染的影响进行分析的关键技术：机动车尾气排放的调查内容与调查方法、单车排放因子的确定、城市街道污染物扩散模型的选择和建立、交通网络环境条件下机动车尾气排放量和街道污染物扩散浓度的计算及交通网络负荷条件下交通污染评价。

If air pollution chokes a city, a direct approach might be to limit the use of cars or require industry to adopt pollution control instruments.

如果空气污染使整个城市感到窒息，那么直接的方法就可能是限制车辆的使用，或是要求企业采用控制污染的仪器。

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。