查询词典 pollutants

Generally, we calculate the concentration of persistent organic pollutants, which is very low in the water by the concentration of organism or sediment under equilibrium condition.

通常，水体中极低含量的持久性有机污染物的浓度可以用平衡条件下的生物体内或沉积物中的污染物浓度来推算，即应用生物监测或沉积物分析方法。

By use of the orbital ergodic property of chaotic optimization and the learning, memory, association and fault-tolerant functions of artificial neutral network, the optimization of the pollutant-receiving water system in a mine reform project was made so as to effectively control the main pollutants such as COD,Pb etc.whic...

利用混沌优化的轨道遍历性和人工神经网络的学习、记忆、联想和容错性，对某矿山扩建项目中污染物的受纳水系进行优化，以有效地控制生产过程中的主要污染物如COD ，Pb等。

In terms of environmental hydrodynamics, more and more attention has been attached to pollutants release characteristic from sediments in estuary area.

在环境水动力学中，河口地区的河流底泥污染物释放扩散特性的研究越来越受到人们的重视。

Root exudates reduce the availability and toxicity of metal pollutants and play an important role in ability for plants to absorb heavy metals.

根系分泌物改变重金属的生物有效性和毒性，并在植物吸收重金属的过程中发挥重要作用。

At this time,the turbidity is reduced by 98.22%,and the removal rates of CODand NH_3-N is 31.55% and 22.79%.Advanced oxidation by microwave is use to treat landfill leachate on the basis of thesystematic analysis of various pollutants in leachate.With the help of orthogonal design andanalysis of gray relational theory,reasonable test conditions are determined:the initialconditions of pH=3,the volume of GAC is 10g/L,the weight of Feis 333.2mg/L,thepower of microwave is 720w,the treating time of microwave is 30min,and the amount ofH_2O_2(30%)is 10ml/L.

在对垃圾渗滤液中各类污染物系统分析的基础上，提出了微波条件辅助处理老龄垃圾渗滤液的类Fenton法高级氧化技术，并通过正交试验设计及灰色关联理论分析了试验影响因素，优化了反应条件，得到了垃圾渗滤液最佳处理条件为溶液初始pH=3、GAC加量10g/L、Fe离子量为333.2mg／L、微波处理功率为720w、微波处理时间为30min、30％的H_2O_2加量为10ml／L。

Formaldehyde is currently the most important indoor air pollutants in China.

甲醛是我国目前最主要的室内空气污染物。

It has made focused assessment about microbiology, chemical pollutants, additives and fortifier in food. In the past years, the ministry issued several assessment results bout Sudan red, Acrylamide in fried food, Potassium bromated in flour, iodine in infant formula milk, processing aids in PVC fresh-keeping film, Maire Yew and etc. The results play an important role in guiding the consumption behavior and urging the public and the international community to understand our food management policy.

入世后，卫生部加强危险性评估能力建设，开展了食品中微生物、食品中化学污染物、食品添加剂、食品强化剂等专题评估工作，近年来，先后公布了食品中苏丹红、油炸食品中丙烯酰胺、面粉中溴酸钾、婴幼儿配方粉中碘、 PVC 保鲜膜中的加工助剂、红豆杉等多项评估结果，为及时引导消费、督促公众和国际社会理解我国食品管理政策发挥了重要作用。

The emission of air pollutants from fossil fuel combustion is the major cause of urban air pollution.

石化燃料燃烧所产生的空气污染物的排放是主要都市空气污染的原因。

The transform of heavy metal with the change of temperature utilizing the software-FactSage was simulated; the power of free electron was calculated and the mechanism of organic pollutants decomposition by pulse discharge was analyzed.

本文还利用FACTsage软件对重金属的迁移进行了模拟，研究了不同重金属的存在状态随温度变化的改变情况；计算了脉冲放电产生的高能电子的能量，对脉冲放电降解有机污染物进行了机理分析。

Dynamic experiments of domestic sewage treated by electrocoagulation process with triangle-wave power, sine wave power and full-wave rectifier power, which had the different power waveform and waveform frequency, were studied. And the removal characteristics of organic pollutants were studied.

采用三角形波电源、正弦波电源、全波整流电源进行动态实验，研究采用不同电源波形和波形频率电源的电凝聚对处理生活污水的影响，以及对有机污染物的去除特性。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了