英语词汇“focal length”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典-现代词典

单词	focal length
释义	focal lengthfocal length /ˈfoʊkəl ˌlɛŋθ/ noun [countable] science, physics the distance between the center of a lens and the focal point
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