allophane

例句：

1. 1.This material is made from aluminium oxide, which is a type of allophane.
   这种材料是由氧化铝制成的，它是一种铝氧化合物。
2. 2.The allophane has a high melting point and can be used in various applications.
   该材料的熔点很高，可以应用于各种场合。
3. 3. Allophane is often used as an insulator in electrical engineering due to its excellent thermal conductivity.
   由于其优异的热导率，allophane常被用作电气工程中的绝缘材料。