cosine power supply 余弦电源
If there is a need to integrate some big power of cosine or sine then the formula will be given to you the way it is in the notes.
如果要计算cos, sin，的高次函数积分，则公式将会在注释中给出。
Power factor power factor is the cosine of the Angle between the active power (kW) and apparent power (kVA) in a circuit.
功率因数功率因数是电路中有功功率(w)视在功率(VA)间夹角的余弦值。
Raised Cosine the eye and power spectrum, roll-off factor of 0.5. This code value for 0,2 billion.
升余弦滚降系统的眼图和功率谱，滚降系数为0.5。发送码元取值为0、2。
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