powered period meaning in Chinese

动力飞行时间

This paper simplifies the fourier transform expression by some mathematical ways , proves the feasibility of simplification , analyzes the amplitude - frequency curve in the case of adopting the sampling interval as 10 power period , and draws the picture by employing matlab tools
对连续傅立叶变换公式做了数学上的简化处理，并证明了简化的可行性。利用傅立叶变换简化公式，分析了扩展采样区间为10倍工频周期时的幅频关系曲线，并利用matlab工具作出仿真图像。