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单词 Fresnel lens
释义 Noun: Fresnel lens
  1. Lens composed of a number of small lenses arranged to make a lightweight lens of large diameter and short focal length

Derived forms: Fresnel lenses

Type of: lens, lens system, lense [non-standard]

Part of: headlamp, headlight, searchlight

Encyclopedia: Fresnel lens

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更新时间:2024/9/23 23:22:10