Pfm
abbr. power factor meter 功率因数计
🗣️ 情景例句
Something borrowed, something blue.
借的东西， 蓝色的东西。
An idle youth,a needy age.
少壮不努力，老大徒伤悲。
I hope you can come to my party next Sunday.
我希望你能参加我下星期天的聚会。