英语词汇“principal visual ray”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	principal visual ray
释义	principal visual ray principal visual ray [′prin·sə·pəl ′vish·ə·wəl ′rā] (optics) A perpendicular extending from a station point to a perspective plane and theoretically passing exactly along the visual axis of a viewing eye. Also known as principal ray.
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