wave 1 meaning in English

第一波

Your brain waves slow down a bit too , with the alpha rhythm of rather fast waves 1 sleep
随着第一阶段睡眠的快速波（注：波分为快中慢三种）的形成，你的脑波会变得缓慢一些。
3 ) from the samples saturated completely by air to those saturated completely by brine , the velocities of compressive wave of the rocks increase obviously , with the extent of 11 . 73 % ; the velocities of shear wave change little or decrease slightly , with the average of decreasing extent of 1 . 21 % for shear wave 1 and 1 . 16 % for shear wave 2 . the difference of velocity between compressive wave and shear wave makes poisson ' s ratio increase obviously , with the average extent of 87 . 25 %
3 )从完全饱和气到完全饱和水，珠江口盆地第三系砂岩、粉砂岩、碳酸盐岩及其过渡性岩石类型的纵波速度是显著增加的，平均增加幅度为11 . 73 ；横波速度变化很小，或略有降低，横波1平均降低幅度为1 . 21 ，横波2平均降低幅度为1 . 16 ；纵横波速度的这种差异变化导致泊松比显著增加，平均增加幅度为87 . 25 。