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桶形穹窿
meaning in Chinese
barrel vault
Related Words
压力穹窿
淡水桶
压力桶
桶裂开
桶箍
折叠桶
聚乙烯桶
大桶
满桶
木桶凹桶
桶形轧辊
桶形贮槽
桶锈
桶盐清
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