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三井金属矿业公司研制出发橙色光的硫化钙系高亮度长余辉荧光体。该产品是将添加了锰钪粉末的钙、镁硫化物,涂在显像管的内
Mitsui Metal Mining Co., Ltd. developed a calcium sulfide-based high-brightness long-afterglow phosphor that emits orange light. The product is added manganese manganese scandium powder calcium, magnesium sulphide, painted in the picture tube