Heavy metal pollution, including lead, zinc, and cooper may be caused by corrosion of the very pipes that carry water from its source to the consumer.
重金属污染，包括铅、锌和铜的污染可能正是由于把水从水源输送到用户的管道本身的腐蚀而引起的。
Local officials have promised that the smelter, which produces lead and zinc, will not reopen until it meets pollution standards.
当地官方承诺，排放铅和锌的该冶炼厂在达到污染排放标准之前不会重新开工。
It was pointed out that the high quality zinc powders could be produced by controlling effectively the processes of alloying, atomizing and sieving, as well as reducing the pollution in every process.
指出，通过加强对合金化、雾化和筛分过程的有限控制，减少各流程的污染，能生产出高质量的无汞锌粉。
应用推荐