1·Metallic calcium also burns in fluorine gas, forming the fused fluoride, and occasionally minute crystals of fluorspar.
金属钙还烧伤的氟气，形成了融合氟化物，偶尔分钟和萤石晶体。
2·U. S. officials said the nine materials covered by their case were bauxite, coke, fluorspar, magnesium, manganese, silicon carbide, silicon metal, yellow phosphorus and zinc.
美国官员指出，这项政策所包含的九种原材料包括铝土岩、焦炭、萤石、镁、锰、碳化硅、结晶硅、黄磷和锌。