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Positive and negative ions in a solution can move and conduct a current .
溶液中的正离子和负离子可以移动并且导电。
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Several reducible ions are present in the solution.
溶液中同时存在几种可还原的离子。
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Several reducible ions are present in the solution.
溶液中同时存在几种可还原的离子。
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