Pfi
abbr. power factor indicator 功率因数指示器
🗣️ 情景例句
and make sure that it is in good condition
确定它状 良好
He who plays with fire gets burned.
玩火者必自焚。
Fortunately, a pilot saw the signal and sent a message by radio to the nearest town.
幸运得很，一位飞行员看到这个信号，用无线电给最近的城镇发了报。