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compound beam
archit. 合成梁
bridg.constr. 复式梁
hydroel.st. 组合梁; 复合梁
tech. 混合梁; 混成梁; 组合架; 迭合梁; 拼装梁
compound beam: 11 phrases in 3 subjects
Bridge construction2
Metallurgy1
Technology8