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二十四面体为“电视激光大屏幕”工程的关键元件,零件用K_9玻璃制造,24个透明表面最后涂敷反射膜层,以便起反射扫描作用(图一)。
Twenty-four tetrahedron for the “TV laser screen” key components of the project, parts made of K_9 glass, 24 transparent surface and finally coated with reflective coating in order to play the role of reflection scanning (Figure 1).