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tierceron n
gen. 居间的拱肋
archit. 居间; 放射肋; 枝肋 (哥特式建筑拱顶交叉肋条间的辅助肋条)
tech. 居问的拱肋; 居间肋; 枝肋哥待式建筑拱顶交叉肋条闾的辅助肋条
tierceron: 1 phrase in 1 subject
Technology1