GEabbr.美国通用电气公司（=General Electric Coabbr.地面设备（=ground equipment）abbr.锗（=germanium）Geiszt盖斯特

1. This is mainly because of geometric nonlinearity.
   这主要是由于几何非线性所致。
2. Both geometrical nonlinearity and elastoplastic were considered in the element model.
   单元模型中考虑几何非线性和材料非线性的双重影响。