They're going to move from a negative pole to a positive pole, so they're going to move through this gel.

它们会从负极移向正极,会通过这块凝胶板

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Because this is a dipole, he chose the pole part of dipole to give us polar covalency.

这就是偶极，鲍林选择了偶极中“极“这一部分来,组成极性共价这个词向我们诠释。

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