导体和绝缘体之间并没有绝对的界限在一定条件下可相互转化一定条件下绝缘体也可变为导体原因是加热使绝缘体中的一些电子挣脱原子的束缚变为 Template




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tomski导体和绝缘体之间并没有绝对的界限在一定条件下可相互转化一定条件下绝缘体也可变为导体原因是加热使绝缘体中的一些电子挣脱原子的束缚变为 coloring