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红宝石
释义
红宝石
Encyclopedia
工学
激光晶体
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红宝石
掺铬(Cr)的氧化铝单晶。
理学
宝石矿物
释
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红宝石
颜色为中等至深红色调的刚玉族宝石。化学组成为Al2O3。红宝石为世界五大宝石之一,与蓝宝石是世界上公认的两大珍贵彩色宝石品种。红宝石被誉为“爱情之石”,象征着热情似火,爱情的美好、永恒和坚贞。
Physics
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红宝石{矿}
Astronomy
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红宝石
Chemistry
>无机化学>无机化学基本概念与无机化合物>释义
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红宝石
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the central and provincial governments run and manage schools
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The Central Institute of Ethnic Administrators
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