We are sure that the main wave packet cannot travel faster than the precursor, which travels at c.
我们确定，主波包传播的速度不能超越以光速c传播的前驱。
As the optical precursor and main wave packet traveled through a second group of rubidium atoms, the scientists took measurements on the speed of the two photon components.
随着光前驱和主波包通过第二组铷原子，科学家就可以对这两个光子成分的速度进行测量。
The atoms had an effect called electromagnetically induced transparency (EIT), which enabled the scientists to separate the single-photon precursors from the main wave packet.
这些铷原子可以产生一种称为“电磁感应光透明”(EIT)的效应，可以帮助科学家从主波包中分离出单个光子前驱。
The results agree with previous studies that have analyzed single photons whose precursor and main wave form have not been separated, which have reported an oscillatory structure.
结论与先前的研究相同，虽然先前的研究分析的是尚未将前驱和主波分离的光子，它们显示出了一个振荡结构。
Each main wave and technical index both meet the design requirements.
各主要波形及技术指标均达到设计要求。
Diastolic pressure was correlated with main wave height and the value of K.
舒张压与K值和主波高度有较好相关性。
The expansion of the downward main wave scope and the left axis deviation proved to have the same cause.
引起主波向下范围扩大与导致电轴左偏的病因基本相同。
The amplitude of wave before repeat wave and dicrotic wave obviously increased compared with vire pulse(P<0.01), but its width of main wave didn't increase greatly(P<0.01).
与弦脉比较，紧脉重搏前波波幅及降中波波幅增高明显（P＜0.01）；而主波宽度不如弦脉增加明显（P＜0.01）。
The amplitude of wave before repeat wave and dicrotic wave obviously increased compared with vire pulse(P<0.01), but its width of main wave didn't increase greatly(P<0.01).
与弦脉比较，紧脉重搏前波波幅及降中波波幅增高明显（P＜0.01）；而主波宽度不如弦脉增加明显（P＜0.01）。
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