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annulus英英字典_annulus剑桥英语解释_annulus柯林斯英文解释_贰靶汉英词典
贰靶汉英词典

annulus

A 开头单词

柯林斯词典

    annulus /ˈænjʊləs/

  • 1. N the area between two concentric circles 环面

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