Electroscopy
验电法; 气体电离检定法
🗣️ 情景例句
Notices are displayed on the bus asking people not to smoke.
公共汽车上张贴着请勿吸烟的公告。
The style is the man.
文如其人。
No, thanks. I can manage it myself.
不，谢谢。我可以自己提。