Permittivity of vacuum
[化] 真空电容率; 真空介电常量
🧩 词语组成解析
n. 介电常数, 电容率\\n[化] 电容率; 介电常数
of
[əv]
prep. 关于;属于…的;由…制成;
aux. 助动词 [非标准用语、方言] =have [主用于虚拟语气];
🗣️ 情景例句
What I do with my money is none of your business.
我怎么花钱跟你无关。
It won't fit; you'll have to go to the post office.
那不行，你必须去邮局才行。
Do you want a go?
你想试一下吗？