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

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.
随便看	return streamer return stroke return system return the compliment return the favor return them for return them from return them to return ticket return tickets return timed out return to return to active duty return to agency return to archive return to australia return to bank return to base return to bed return to childhood return to clinic return to control return to fly board return to form return to growth

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