振荡总振幅,正负峰间,信号总振幅

From peak to peak leaps the thunder. 雷声隆隆，翻山越岭而来。

A business cycle can be measured from peak to peak or from trough to trough. 一个商业周期可以用从高峰到高峰或者从谷底到谷底来测定。

The peak to peak amplitude of lateral GRF with media-heel shoe was the largest. 结果：自然步速下，垂直方向上地面反力峰峰值随鞋跟高度增加而增大；

The peak to peak amplitude of forward GRF with media-heel shoe was minimal. 穿中高鞋的侧向反力的峰峰值最大，而前进方向上峰峰值最小。

The parameters of average image intensity (AII), AII% (normalized AII) and peak to peak intensity (PPI) in IVS, LVPW of 3 groups mentioned above were measured by AD technology. 再用AD技术检测上述三组室间隔、左室后壁的AD参数即AII、AII%25(室间隔与心包的AII的比值)及PPI值。

Results There were significant differences of average image intensity (AII), peak to peak intensity (PPI) and standard deviation of image intensity (SDI) between bladder cancer and clot (P