PF PowerFactor 功率因数

low powerfactor wattmeter 低功率因数瓦特表

short-circuit powerfactor 短路功率因数

superimposed powerfactor controller 叠加功率因数控制器

powerfactor lead 功率因数超前

powerfactor swing 功率因素动荡

powerfactor adjustment 功率因素调整装置

zero powerfactor characteristic 零功主因数特性