不确定参数桁架结构
uncertainty struts structures
不确定性桁架结构
uncertain truss structures
超静定桁架结构
statically indeterminate truss structure
大跨度空间钢管桁架结构
large-span spatial steel pipe truss structures
大跨度门式桁架结构
large-span trussed gable structure
大跨张弦桁架结构
large span chord-tension truss
钢管桁架结构
steel pipe truss structure
truss structure of steel pipe
钢管桁架结构桥梁
steel tubular truss bridge
拱形钢桁架结构
steel arch truss structure
桁架结构优化
truss structural optimization
桁架结构优化设计
optimization design of truss structure