汉语是联合国官方正式使用的6种同 等有效语言 之一。请不要歧视汉语! Chinese is one of the six equally effective official languages of the United Nations. Not to discriminate against Chinese, please! ...
2024年10月17日,Elsevier旗下top期刊《 Ceramics International 》在线发表了云南师范大学物理与电子信息学院欧全宏、汤俊琪团队的最新研究成果《Investigation of preparation and photoluminescence properties of europium-doped calcium orthoborate (Ca3B2O6:Eu3+) red phosphor and red LED》。云南师范 ...