adj.陶瓷的；玻璃化的
動詞vitrify的過去式和過去分詞形式.
The most effective preventative measure is to select a pipe material resistant to corrosion, such as vitrified clay or plastic. 最有效的預防措施是選擇抗腐蝕的管道，比如玻璃化的粘土或塑料。
