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首页 - 英汉词典 - F字开头的单词或词组 - Fresnel lens

英语解释

Fresnel lens

汉语翻译

【计】菲涅耳透镜

Fresnel lens英语解释

名词 fresnel lens:

lens composed of a number of small lenses arranged to make a lightweight lens of large diameter and short focal length

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