Graded insulation
[电] 层级绝缘
🧩 词语组成解析
a. 分等级的；按年级分的
insulation
[ˌinsju'leiʃən]
n. 隔离，孤立;绝缘;绝缘或隔热的材料;隔声;
🗣️ 情景例句
I have a new puppy and he has an excellent temperament.
我有只新的小狗，它的脾气很好。
Well, when exactly?
哦，具体什么时候？
Good idea! That is much better than watching a bad TV programme!
好主意！这比看破电视节目要好多了。