英语词汇vertical circle怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	vertical circle
释义	vertical circlen.（名词） A great circle on the celestial sphere that passes through the zenith and the nadir and thus is perpendicular to the horizon.平经圈：与水平线垂直的宇宙天体范围内的大圈，它经过天顶和地点
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