英语词汇“beam-spread angle”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	beam-spread angle
释义	beam-spread angle beam-spread angle The width of a light beam, measured in degrees, at the meeting point between two imaginary lines at which the light intensity drops to half its maximum value.
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