fused silica refractory

例句：

1. 1. The furnace is made of fused silica refractory.
   这个炉子是用熔融硅石耐火材料制成的。
2. 2. The refractory material has excellent thermal conductivity.
   这种耐火材料具有优良的导热性能。
3. 3.The refractory is used to protect the furnace from heat and wear.
   这种耐火材料用于保护炉子免受热量和磨损的影响。