aSome monotungstate hosts as a kind of self-activating phosphors can emit blue light itself under ultraviolet or X-ray excitation 一些monotungstate主人作为一直接黄磷可能散发蓝色光在紫外或X-射线励磁之下 [translate] aPLEASE SUPPLY EXISTING PLASTIC CAP (ANY COLOUR) 请供应现有的塑料盖帽 (任何颜色) [...