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- Based on the groundwater monitoring data in townships of Dexin, Yuanjia and Huangxu, Deyang City, this paper demonstrates the study on the problem of groundwater pollution by manganese and puts forward the relavant control measures. 摘要利用德阳市旌阳区所辖德新镇、袁家镇、黄许镇一带区域的地下水监测数据，对地下水中锰污染问题进行研究，提出了地下水锰污染的防治措施。
- Preventing pollution by automobile emission ? 防治机动车排气污染物污染。
- Preventing pollution by automobile emission? 防治机动车排气污染物污染。
- pollution by manganese 锰污染
- The river has been polluted by waste products from the factory. 这条河已经受到工厂排放的废料的污染。
- Less pollution by decease of film and water waste. 5. 4.;降低废片及废水造成的环境污染。
- A white or colored crystalline mineral,a variety of willemite,in which the zinc is partly replaced by manganese. 锰硅锌矿一种白色或彩色的晶体状矿物质，是硅锌矿一个种类，其中的锌部分被锰所代替
- The area will be free of pollution by the year 2006. 到2006年，这个地区将没有污染。
- A white or colored crystalline mineral, a variety of willemite, in which the zinc is partly replaced by manganese. 锰硅锌矿一种白色或彩色的晶体状矿物质，是硅锌矿一个种类，其中的锌部分被锰所代替
- Immediate steps should be taken to prevent pollution by excreta. 要立即采取措施防止排泄物污染。
- Feng XH, Zhai LM, Tan WF, Liu F, He JZ.The controlling effect of pH on oxidation of Cr(III) by manganese oxide minerals. 黄丽;洪军;谭文峰;胡红青;刘凡.;我国几种亚热带土壤铁锰胶膜的微形貌和元素分布特征
- Reduces air pollution by minimizing the discharge of unburned hydrocarbon . 将未燃烧的碳氢化合物含量降至最低，减少了空气污染。
- Rice straw is recycled for reuse to avoid creating pollution by burning it. 避免燃烧稻草造成污染，稻草也要回收再利用。
- The fiver has been polluted by factory waste. 这条河流被工厂废物所污染。
- The water was polluted by refuse from the factory. 工厂所排放的废物弄脏了水。
- The air was polluted by factory smoke. 空气被工厂冒的烟污染了。
- The river has been polluted by factory waste. 这条河流被工厂废物所污染。
- Nitrobenzoic acid was prepared in 75% yield by manganese sulfate catalyzed liquid phase oxidation of 4-nitrotoluene with oxygen. 以硫酸锰作催化剂液相条件下用氧气氧化对硝基甲苯,生成对硝基苯甲酸,收率75%25。
- The rapid growth of its population,industry and commerce remain at the root of pollution by human activities. 人口激增，工商业蓬勃发展，这些人类活动正是污染的根源。
- This Law shall apply to the prevention and control of pollution by liquid waste and gaseous waste in containers. 液态废物和置于容器中的气态废物的污染防治，适用本法。
