X未知因数(X factor)：发现你自己和别人身上的特长，找到每一个人的优点，并将它发挥出来。
X unknown factor (x factor) : find yourself and other people's expertise to find everyone's advantage and it has played out.
更正系数是补退电费的重要依据，但更正系数中的功率因数角也是未知数。
Correction coefficient is important to electric charge refund, but its power factor Angle is unknown.
应用推荐