电磁波被广泛应用于无线通信技术中。

___Electromagnetic waves are widely used in wireless communication technologies.

电磁炉利用电磁感应原理加热锅具。

The induction cooker uses ___electromagnetic induction to heat the cookware.

太阳发出的电磁辐射对地球生命至关重要。

The sun's ___electromagnetic radiation is essential for life on Earth.