Pfi
abbr. power factor indicator 功率因数指示器
🗣️ 情景例句
If only Robbie and Alexandra were here.
要是Robbie和Alexandra在这儿多好。
Does John have a yellow pencil?
约翰有一支黄铅笔吗？
A week later, the editor at last received a fax from the journalist.
一周之后，编辑终于接到记者的传真。