英语词汇“optical reference point”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	optical reference point
释义	optical reference point optical reference point Any index mark on a canopy or at any other place that provides the pilot with sightline guidance in a vertical or a near-vertical landing.
随便看	mroo m roof m-roof mrop mror mrorg mros mrosd mro-t mrot mrotc mrotl mrouter mrovcp mroveli leontii mrovg mrow mrozek, slawomir mrp mrp1 mrp-14 mrp14 mrp-2 mrp2 mrp-2b

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