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
And tell me where you are and what's happened.
告诉我你在哪里，发生了什么事？
To throw a plane
抛
Some of the things were hundreds of years old.
展出的一些东西已有数百年的历史了。