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right ascension setting scale /ˈɹaɪt ɐsˈɛnʃən/ n

中文：赤经刻度盘

中文 · 赤经刻度盘Español · anillo graduado de ascensión rectaFrançais · cercle d’ascension droite
Meaning：Graduated disk indicating the right ascension of the observed celestial body. celestial coordinate system
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Reflecting telescope

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