“astronomical longitude”的概念、定义、翻译、参考文献-科学参考

单词	astronomical longitude
释义	astronomical longitude Encyclopedia 工学天文坐标系释 astronomical longitude天文经度地面某点A的铅垂线和地球自转轴的平面，称A点的天文子午面。A点的天文子午面与本初子午面间的夹角λ，称天文经度。 Astronomy astronomical longitude天文经度
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