| 正面 | 13481.prism 英 ['prɪz(ə)m]美 ['prɪzəm]     |
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| 背面 |      释义： 1. 斯诺登 => 棱镜门：Prism.n. 棱镜；[晶体][数] 棱柱 例句： 1. Light is refracted when passed through a prism.光通过棱镜时产生折射。 prism 棱镜，棱柱来自拉丁语prisma,棱镜，棱柱，来自希腊语prizein,锯，锯开，词源同prion. prismprism: [16] The etymological idea underlying the word prism is of its shape, that of a ‘sawn-off’ piece. It comes via medieval Latin prisma from Greek prísma, a derivative of the verb prízein ‘saw’. Its optical application emerged in English at the beginning of the 17th century.prism (n.)1560s, a type of solid figure, from Late Latin prisma, from Greek prisma (Euclid), literally "something sawed," from prizein "to saw" (see prion). Meaning in optics is first attested 1610s." |