While smooth surfaces send back a reversed, right-polarized wave, rough areas return left-polarized waves.
光滑表面会反射一个反向的优选极化波，而粗糙地区的反射波是左旋极化波。
2
The latest research on wave height and return period doesn't address Padang's needs; the real problem is simply that there is not enough time to evacuate.
最近关于海浪高度和周期研究以满足巴东人的需求，现实问题是没有足够的时间撤离。
3
Not only that, but when a wave threatened to return the seal to danger, the humpback used its massive flipper (at five metres, the longest in the animal kingdom) to nudge it back on.