The main source for structural nonlinearity is summarized, and a FE model for the primary mirror subassembly of a collimator is established on the basis of contact theory.
介绍了产生结构非线性的主要来源，并在接触理论的基础上对主反射镜组件进行了合理的有限元建模。
The window of mobile phone is one of the most important subassembly. Its main function is protect the LCD and add surface decorate effect of the mobile phone.
手机视窗(又称面板保护显示屏)是手机的重要组件之一，主要作用是保护LCD显示屏和增加外观装饰效果。
The window of mobile phone is one of the most important subassembly. Its main function is protect the LCD and add surface decorate effect of the mobile phone.
手机视窗(又称面板保护显示屏)是手机的重要组件之一，主要作用是保护LCD显示屏和增加外观装饰效果。
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