“United States Naval Observatory”的概念、定义、翻译、参考文献-科学参考

单词	United States Naval Observatory
释义	United States Naval Observatory Encyclopedia 理学天文台释 United States Naval Observatory ; USNO美国海军天文台美国一家天文机构。 Astronomy United States Naval Observatory缩写：USNO。美国海军天文台
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科学参考收录了854744条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。