英语词汇“prime grid meridian”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	prime grid meridian
释义	prime grid meridian prime grid meridian [′prīm ′grid mə‚rid·ē·ən] (navigation) The reference meridian of a grid; in polar regions it is usually the 180-0° geographic meridian, used as the origin for measuring grid longitude.
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