“标准时频”的概念、定义、翻译、参考文献-科学参考

单词	标准时频
释义	标准时频 Astronomy 全称：standard frequency and time signal。缩写：SFTS标准时频
随便看	lever of force lever principle lever relationship Le Verrier Leverrier ring lever rule lever scale lever stop lever-type steam distributing gear Levi Leviathan Levi Ben Gershom Levi Ben Gerson Levi Civita Levi-Civita Levi Civita connection Levi-Civita connection Levi-Civita crater Levi-Civita density Levi-Civita parallel displacement Levi-Civita parallelism Levi-Civita pseudotensor Levi-Civita regularization Levi-Civita symbol Levi Civita tensor

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