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拱心
meaning in Chinese
[建筑] arch-core
Related Words
弧拱
板拱
连拱
拱肋骨
副拱子拱
管拱
悬吊拱
拱窗
爆发拱
砖拱
拱楔块
拱楔石
拱心角
拱心角 毗拱角距
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