英语词汇“projection perimeter”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	projection perimeter
释义	projection perimeter pro·jec·tion pe·rim·e·ter a perimeter that uses as target a spot of light that can be adjusted rapidly as to size, brightness, and color, and moves silently at any desired speed.
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projection perimeter