英语词汇“lummer-brodhun sight box”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	lummer-brodhun sight box
释义	Lummer-Brodhun sight box Lummer-Brodhun sight box [′lu̇m·ər ′brȯd‚hu̇n ′sīt ‚bäks] (optics) A device, having a series of prisms, for viewing simultaneously the two sides of a white diffuse plaster screen illuminated by light sources whose luminous intensities are being compared.
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英语词典包含2567994条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。

Lummer-Brodhun sight box