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The control synthesis of nanoparticles was the implementation process of material ideal design. Nano-hydroxyapatite（HAP） w......

发光二极管(LED)具有低能耗、长寿命、体积小、质量轻、方向性好、响应快、固体化、无污染和耐各种恶劣条件等优点。白光发光二极......