electron microscope

He had not used an electron microscope for nearly a year.

Too small to be seen under anything but an electron microscope.

There was a section given over to an electron microscope.

But most are so tiny, you'll find them only with an electron microscope.

Others are so small they can be detected only with an electron microscope.

We have managed to photograph it through an electron microscope.

Some of the genes look different in the electron microscope.

He was a pioneer in the study of the electron microscope.

A few days with the electron microscope would give us some clues.

Similar ideas were proposed for the electron microscope in the early 1980s.