Pfi
abbr. power factor indicator 功率因数指示器
🗣️ 情景例句
Oh, thank you.
哦，谢谢。
From the father comes honour; from the mother, comfort.
荣誉由父次，安慰由母与。
What we read influences our thinking.
我们所阅读的书本会影响我们的思想。