剪切型巨型弹性地基梁单元
beam element with shear-typed elastic subgrade
巨型钢结构
steel mega-frame structures
mega steel structures
steel megastructure
巨型钢框架结构
steel mega-frame structures
mega steel frame
mega steel frame structure
H型钢钢混叠合梁
H-formed steel concrete composite girder
大中型型钢轧机
heavy and medium section mill
钢板桩格型围堰
steel sheet pile cellular cofferdam
高频焊轻型H型钢
High - frequency meld light - H - Steel