无线电波是电磁辐射的一种。

Radio ___waves are a type of electromagnetic radiation.

一些研究表明，暴露于某些磁波中可能会产生影响。

Some studies suggest that exposure to certain magnetic ___waves might have effects.

光波在真空中的速度是恒定的。

The speed of a light ___wave is constant in a vacuum.