矾土

例句：

1. 1. The potter uses a mixture of clay and quartz to make porcelain.
   陶工使用粘土和石英混合物制作瓷器。
2. 2. Aluminium oxide is used as an anti-corrosive coating on metal surfaces.
   氧化铝被用作金属表面的防腐蚀涂层。
3. 3. The glazed ceramics are made by mixing alumina with water and heat.
   通过将铝氧化合物与水混合并加热来制作釉面陶瓷。