The sky wave is the major transmitting way of short-wave communication.

因此短波通信的主要传播路径是天波。

The difference between three "availability" of the sky wave radar are discussed in this paper.

讨论了天波雷达三个与时间有关的“可用度”的区别。

The sky wave over the horizon radar (OTHR) is a new mechanism in which the ionosphere is used as a mirror to reflect the radar high frequency signal to detect the target.

高频天波超视距雷达所独有距离多跳现象，使得位于雷达威力覆盖范围以远的杂波通过地面与电离层的多次反射进入到雷达的接收阵列。

I step away softly, just as I creep here quietly I wave gently, sighing goodbye to the western sky.

轻轻的我走了，正如我轻轻的来；我轻轻的招手，作别西天的云彩。