杂质-杂质跃迁
imurity-to-impurity transition
掺杂铝硅基玻璃光纤
doped aluminosilicate optical fiber
高铁铝杂质
high iron and aluminum impurities
含碳铝硅质板岩
carbonaceous Al-Si slabstone
铝硅质浇注料
Aluminia-silica castables
铝硅质量分数比
mass ratio of Al2O3 and SiO2
浅色硅铝质小球
light-colored sialic ball