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叠桁式拱架
meaning in English
double-layer-truss centering
Related Words
桁条
脊桁
舭桁
相当桁
底桁
桁材高度
间断纵桁
格构桁
横桁绳
桁拖网渔船
叠嶂
叠濑
叠梵结构
叠榫
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