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fresnel lens
释义
WordReference Random House Unabridged Dictionary of American English © 2024
Fresnel
′
lens
′
,
Optics
a large lens with a surface of concentric grooves of prismatic profile, used in automobile headlights, searchlights, spotlights, etc.
see
fresnel
1840–50
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更新时间:2026/6/22 18:33:48