adj.陶瓷的；玻璃化的
动词vitrify的过去式和过去分词形式.
The most effective preventative measure is to select a pipe material resistant to corrosion, such as vitrified clay or plastic. 最有效的预防措施是选择抗腐蚀的管道，比如玻璃化的粘土或塑料。
