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horseshoe mount /ˈhɔːsʃuː ˈmaʊnt/ n

中文：马蹄形底座

中文 · 马蹄形底座Español · montura en herraduraFrançais · monture en fer à cheval
Meaning：Mount used to support a large telescope and point it toward the celestial pole.
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Observatory cutaway

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