Regular repeating actions such as sound waves, lightwaves, or radio waves have a certain frequency, or number of waves per second.
有规律的重复活动如声波、光波、无线电波都有一个特定的频率，或者说是每秒的波动次数。
《柯林斯英汉双解大词典》
2
Unlike visible lightwaves, these radio waves can get through the various gases and dusts in space, and through our own earth's atmosphere comparatively easily.
与可见光波不同的是，这些无线电波可以较容易地穿过太空中的各种气体和灰尘，穿过我们地球的大气层。
3
In optical astronomy, using a telescope and observing the stars that way, we rely on visible lightwaves.