“world geographic reference system”的概念、定义、翻译、参考文献-科学参考

单词	world geographic reference system
释义	world geographic reference system [`wǝrld ¦jē·ǝ¦graf·ik `ref·rǝns ´sis·tǝm] ^NAVIGATION A geographic reference system used by the U.S. Air Force for aircraft position reports, target designations, and other tactical air operations. Abbreviated georef.
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