Density of electrostatic charge
[电] 静电荷密度
🧩 词语组成解析
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];
a. 静电的, 静电学的\\n[医] 静电的
🗣️ 情景例句
How many stamps do I need?
我需要多少邮票？
We exchange products under almost all circumstances.
在各种情形下我们都可更换产品。
The hovercraft is particularly useful in large areas with poor communications such as Africa or Australia;
气垫船在非洲、澳大利亚等交通不发达地区特别有用。