Ministry of Environment and Ecology: Environmental Bulletin 2021
http://j.people.com.cn/n3/2022/0527/c95952-10102423.html
27. May 2022
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Nankai University team achieves synthesis of single crystal sapphire Al2O3 with “blue lotus purple” chromaticity
http://j.people.com.cn/n3/2022/0526/c95952-10101783.html
27. May 2022
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