下承式桁架
词语: 下承式桁架
解释: through truss
词典: 水利专业汉英词典
下承式桁架 相关解释
through truss 〔名词〕下承式桁架,穿式桁架
through truss 〔名词〕下承式桁架;n.下承桁架
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