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。
Anyone who is a industrial waste gas, waste gas fuel have pollution atmosphere, zinc coating the corrosion resistance than at sea or plating, cadmium in the ocean in the opposite.
凡属有工业废气、燃料废气污染的大气中，锌镀层的耐蚀性优于镉镀层，在海上或海水中则相反。
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