Pfm
abbr. power factor meter 功率因数计
🗣️ 情景例句
He knows all there is to know,
他无所不知，
There's still hope.
还是有希望的。
After consulting my railway timetable, I noted with satisfaction that there was an express train to Westhaven.
我查看了列车时刻表，满意地了解到有一趟去威斯特海温的快车。