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
Why advanced?
为什么是高级的？
Thank you for taking me home.
谢谢你送我回家。
Textile business has become more and more difficult since the competition grew.
随着竞争的加剧，纺织品贸易越来越难做了。