Hazard and prevention of indoor air pollution 室内空气污染危害与防治
Harm of so2 pollution and progress of its control techniques in our country 2污染危害及其治理技术的进展
The harm and countermeasure of organic substance pollution in indoor air 室内环境空气中的有机物污染危害及对策
Non - point source pollution has some characteristics , such that its harm is heavy and it is difficult to prevent 和点源污染相比,面源污染危害规模大、防治困难。
With the block extension of taiyuan iron & steel co . ltd ; hydraulic pressure equipments have been used in more factories , the endanger of hydraulic pressure pollution was realized more than before 随着近年来太钢扩建规模的加大,液压设备安装越来越多,我们对液压污染危害的认识越来越高。
The harm and control of cadmium ( cd ) pollution have always been one of the focuses environmental scientists concerned , for cd is a typical pollutant drastically dangerous to environment 镉是一种环境危害较大的典型重金属污染物。其污染危害与控制长期以来一直是环境科学关注的热点问题之一。
A report on the quality of the atmospheric environment shall include such contents as the characteristics of urban atmospheric pollution , the types of major pollutants and the extent of harm caused by the pollution 大气环境质量状况公报应当包括城市大气环境污染特征、主要污染物的种类及污染危害程度等内容。
Ok , until now , we have learned so many kinds of pollution . now please work in groups and discuss them . after a moment , i ' ll ask some students to report it 到目前为止,污染危害地球的方式已基本介绍完毕,可以让学生做专题讨论,以锻炼他们组织语言的综合能力。在此过程中,鼓励学生大胆发挥,做最大程度的拓展性讨论,最后通过汇报,教师检验活动成果。
T : ok , until now , we have learned so many kinds of pollution . now please work in groups and discuss them . after a moment , i ' ll ask some students to report it 到目前为止,污染危害地球的方式已基本介绍完毕,可以让学生做专题讨论,以锻炼他们组织语言的综合能力。在此过程中,鼓励学生大胆发挥,做最大程度的拓展性讨论,最后通过汇报,教师检验活动成果。
In case of the real limitations given by the objective circumstances where the noise pollution from air - conditioning equipment can not be eliminated for the time being , care must be taken to minimize the harm caused by noise pollution and a written agreement shall be reached through consultation with the affected units or individual persons 确因客观条件所限,暂时不能通过治理消除空调设备噪声污染的,必须把噪声污染危害减少到最低程度,并与受污染的单位和个人协商,达成书面协议。