The edgewise of longitudinal channel beam be agree with the dimension of switchgear body frame.

基础框架纵向槽钢的外延距离应与开关柜本体框架的尺寸一致.

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The design of the body frame topologic structure is presented, using FEM - based topological optimization technique.

摘要利用基于有限元法的拓扑优化技术设计车身大骨架的拓扑结构.

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