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1·Use geometry or you need to set up for double integral of a surface.

总之，就是用几何方法或是在曲面上建立二重积分。

2·Double integral of F.dS or F.ndS if you want, and to set this up, of course, I need to use the geometry of the surface depending on what the surface is.

就是做F·dS或是F·ndS的二重积分，为了能建立积分，需要用到曲面的几何性质，这与该曲面的类型有关。

3·This is a typical optical, mechanical, electronic and calculated integral system and can be applied to the geometry and dynamic measurement of MEMS microstructure.

该系统是一个典型的光、机、电、算集成的MEMS测试系统，已应用于MEMS微结构几何尺寸和动态特性等的测量。