查人人中国名人网废纸做的手工艺品做法:is there anybody knows the formula of Power Factor?
来源：百度文库 编辑：查人人中国名人网 时间：2024/07/07 12:48:08
urgent . . tq vmuch
PF
＝cosθ
＝(U dot I)/|UI|
＝cos[arg(ū/ī)]
where 'dot' means dot product of two vectors, and ū and ī are the equivalent complex value of voltage and current, respectively, and θ is the angle between the U and I vectors.
is there anybody knows the formula of Power Factor?
no one is there
there is a hero
翻译：anybody is called 'guy' by me!
Help!!!! Is here anybody come from Chang An Da xue?
There is 与 There are 的区别
用there is,there are 填空
where,there is a will there is a way
there is a will,there is a way.
there is a will there is a way`是什么意思