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                聚□ 合氯化铝使用时为什么水面会有漂浮物?

                发布时间:2020/1/18 17:28:27作者:来源:点击:

                      有可能是药剂投放量过大了,也有可能是悬浮物比重过轻,絮凝以后就飘上面了。

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