单词 | Fresnel drag coefficient |
释义 | Fresnel drag coefficient [frā`nel `drag ´kō·i´fish·ǝnt] OPTICS The quantity 1 - (1/n2), where n is the index of diffraction of a transparent medium, believed by Fresnel to be the ratio of the velocity with which ether was dragged along in the medium to the velocity of the medium itself. |
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