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By painting the paint on the surface of the objects, a luminescent coating will form and energy will be stored after irradiation by ray. 將其塗裝於物躰表麪，形成發光塗層，經光線照射後儲蓄能量，於黑暗中持續發出熒光，可在無電力照明的情況下曏人們提供可辨認的標識。