alkapton

例句：

1. 1.The alkapton is a rare and valuable material used in the production of electronics.
   阿莱克坦尼是一种稀有且珍贵的材料，用于生产电子制品。
2. 2.The alkapton was discovered by accident during a scientific expedition.
   阿莱克坦尼是在一次科学考察中偶然发现的。
3. 3.The alkapton has been used in various industries for its unique properties.
   阿莱克坦尼因其独特的性质而被广泛应用于各个行业。