Discusses the derived rings and weak derived rings on the total matrix ring. At first, we discuss the properties of these rings, and next discuss their relations matrix rings.

讨论了同域上全阵环有密切关系的几种环类，不仅研究了这些环类的性质，同时也研究了它们同普通矩阵环的关系．。

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Based on the theory of matrix optics, temperature effect of Ring Laser with the Total Reflection Prisms (TRPRL) is studied.

根据矩阵光学理论，研究了全反射棱镜式环形激光器(TRPRL)光路的温度效应。

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