某钢结构厂房已有四十多年的历史，吊车梁系统严重损坏。
A steel factory building has been used for over forty years and the crane system was damaged seriously.
一直以来，对于斗轮机、圆形堆取料机等大型钢结构的有限元分析，都采用先有设计方案，再在已有设计方案的基础上，建立设备的有限元计算模型进行分析计算。
All along, the Bucket, circular stacker-reclaimer FEM analysis, are used to design the program first, then design the finite element calculation device model based on the program.
新建高层钢结构的大量应用实例和已有结构的抗震加固的应用表明，此种支撑的使用前景非常广阔。
Their applications in both newly-built high-rise steel buildings and the seismic retrofit of the existing buildings show good prospects of using BRBs.
是专业生产经营玻璃棉及钢结构工程配套产品的大型企业，生产经营玻璃棉保温材料和钢结构工程配套产品已有二十余年的历史。
The company is specialized in producing glass wool and steel structure supporting materials production and operation supporting steel structure products have 20 years of history.
是专业生产经营玻璃棉及钢结构工程配套产品的大型企业，生产经营玻璃棉保温材料和钢结构工程配套产品已有二十余年的历史。
The company is specialized in producing glass wool and steel structure supporting materials production and operation supporting steel structure products have 20 years of history.
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