半透明石英玻璃
translucent fused silica glass
translucent vitreous silica
不透明石英管
non-transparent quartz tube
不透明石英燃烧管
non-transparent quartz combustion tube
镁铝尖晶石透明陶瓷
transparent MgAl 2O 4 ceramics
透明石英玻璃
transparent vitreous silica glass
transparent fused silica glass
vitreous fused silica
低品位黄铜矿矿石
Low-grade chalcopyrite ore