These materials include the official seal, corporate seal, financial special chapter, corporate ID card and a copy of the basic account is ready to prepare some of the information.

这些材料包括公章、法人章、财务专用的章，法人身份证的复印件还有就是准备好基本账户的一些资料了。

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In the fourth chapter, we studied all dimensional reflection in ID steps system.

第四章利用传输矩阵方法在理论上研究了一维台阶体系的全角度反射问题。

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