Polymeric aluminum chloride (PAC) is an inorganic macromolecular compound which is good at cleaning water.

聚合氯化铝又称PAC，是一种无机高分子化合物。

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Polymeric aluminum chloride (PAC) is an inorganic macromolecular compound which is good at cleaning water.

聚合氯化铝又称PAC，是一种无机高分子化合物。

youdao