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English[en]
Du Fay announced that electricity consisted of two fluids: vitreous (from the Latin for "glass"), or positive, electricity; and resinous, or negative, electricity.
Chinese[zh]
Du Fay声明,电力包括两个液体组成: 玻璃 (拉丁文 "vitreous"),或正电;和 树脂(拉丁文resinous,),或负电。

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