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许多人都看过彩色电视,然而电视显象管荧光屏上涂的荧光粉是稀土化合物,知道的人就极少。这里我们仅就荧光粉中所使用的稀土
Many people have seen color television, but the fluorescent screen phosphor coated on the TV picture tube is a rare earth compound, very few people know. Here we only use the rare earth phosphor