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In the present state of our knowledge, it would be useless to attempt to speculate on the remote cause of the electrical energy... its relation to chemical affinity is, however, sufficiently evident. May it not be identical with it, and an essential property of matter?
就我们目前所知，试图推测电能的遥远原因是没有用的。然而，它与化学亲合力的关系是十分明显的。难道它和物质的本质属性不一样吗?