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李明同学根据所学的化学知识,利用家庭现有的器材自行设计了一个简易净水器,并成功地将一瓶红墨水进行了净化. (1)李明设计的净水器利用的化学原理是__.
Based on his knowledge of chemistry, he used his existing equipment to design a simple water purifier and succeeded in purifying a bottle of red ink. (1) The chemistry of the water purifier used by Li Ming The principle is __.