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Is there someone want to visit treatment plants in the US?Most of the water/wastewater treatment plants in the US are free to public. If someone can have to chance to get the visa, I would like to make the arrangement for the plant visits.Most of water treatment plants in the US have to meet:
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只看楼主 我来说两句请老师帮忙,3.5吨/小时的溶气气浮工艺应选用多大的空压机及溶气罐、回流水泵回流比?
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