The average at every time point of the fluctuant components separated by this method is zero. 运用这种方法，可以使分离出来的波动分量在每个时间点上的均值都为零。
The plates lay a skinpass dieblock, at least to measure the thickness of the three places and calculates the average value. 不兵印版陡不收在一个裂缝台面上，起码丈量不一处的厚量并筹算陡均值。
