20 per cent transparency: Developed by Italian firm Italcementi, there are approximately 50 holes in each panel.
20%的透明度：由意大利公司意大利水泥研发，每块面板里大约有50个洞。
The thin film is firm, and has good conductivity, visible light transparency and chemical stability.
该薄膜成膜牢固，具有良好的导电性、可见光透明性和化学稳定性。
The thin film is firm, and has good conductivity, visible light transparency and chemical stability.
该薄膜成膜牢固，具有良好的导电性、可见光透明性和化学稳定性。
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