Regular repeating actions such as sound waves, light waves, 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》

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The Doppler effect explains changes in the length of light waves or sound waves as they move toward you or away from you.

VOA: special.2009.04.29

Just like we see destructive interference with water waves or with light waves, we can also see destructive interference with orbitals.

就像我们看到水波,和光波的相消干涉，我们也可以看到轨道的相消干涉。

麻省理工公开课 - 化学原理课程节选

And so if you say de Broglie's name to many physicists, the tagline they associate with de Broglie is "matter waves" as distinct from light waves.

如果你向很多物理学家提及到德布罗意，他们觉得德布罗意中心思想就是,是物质波不同于光波。

麻省理工公开课 - 固态化学导论课程节选

From there engineers hope to use still-tinier wavelengths the "extreme ultraviolet" light waves that measure 0.013 microns.

FORBES: Trick of the Light

Makers then aim to move to even deeper ultraviolet light waves that are only 0.19 microns long.

FORBES: Trick of the Light

It is naturally "birefringent" - meaning it sends light waves of different polarisations along slightly different paths.

BBC: Invisibility cloaking benefits from crystal-clear idea