| 1. | Included in ceramics are porcelain such as pottery ; abrasives such as emery used on sand - paper , refractories such as tantalum carbide , with a melting temperature of about 3870 centigrade , and structural clay such as brick
陶瓷内部包括瓷器，砂纸一样的研磨剂，熔点达到3870摄氏度的难融钽化物和象砖块一样的结构黏土。 |
