Pfi
abbr. power factor indicator 功率因数指示器
🗣️ 情景例句
Well, that's what fathers are for.
嗯，父亲们的用处正在于此。
At noon I had lunch with a friend of mine.
在中午我与一个朋友一起吃了午餐。
Members of the press weren't allowed into the meeting.
新闻记者不得进入会场。