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Fermat's principle
释义
Fermat's principle
Encyclopedia
理学
〔光线与光束〕
释
Fermat's principle
费马原理
光在两点间所走的路径是所需时间最少的路径。1657年,由法国数学家P.de费马发现。
Physics
光学、声学
光学
Fermat's principle
费马原理
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