The EMG average amplitude was increased with the increase of the trunk rotation angle without significant difference (P>0.05).

随躯干旋转角度的增加，竖脊肌肌电幅度呈升高的趋势，但差异无统计学意义（P＞0．05）。

youdao

P300 average amplitude on parietal area was increasing with age increasing and junior high school group's was significantly lower than two others.

在顶区的P300的平均幅值随着年龄的增长而增加，且初中组明显低于其它两个组。

youdao

And when we're talking about the amplitude of the wave, we're talking about the deviation from that average level. So, if we define the average level as zero, you can have either a positive amplitude or a negative amplitude.

当我们讨论一个波的振幅时,我们说的是偏离平均位置的量,如果我们把平均位置,定义为零的话，那幅值不是,正的就是负的，有时候人们在。

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