The imaginative identification in the Mirror Stage has similar features with knowledge and its structure.
镜像阶段的想像性认同与人类知识同构，具有相似性。
A kind of structure design of lightweight of primary mirror is introduced in this paper.
介绍了主反射镜的一种轻量化结构设计；
Various components are the spherical mirror, the form are simple, and the structure is compact.
系统各组元均为球面镜，形式简单、结构紧凑。
Various components are the spherical mirror, the form are simple, and the structure is compact.
系统各组元均为球面镜，形式简单、结构紧凑。
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