The electron densities in the material were measured using a scanning electron microscope.

The flux densities of the magnetic field were measured at different points.

The physiological densities of the two populations were significantly different.

The probability densities of the data points are calculated using a Gaussian distribution.

The population densities of the two cities are significantly different.

The Planck densities in the universe are incredibly small.

The specific densities of the samples were measured and recorded.

The magnetic flux densities in the two regions were significantly different.

The bone mineral densities of the patients were measured using dual-energy X-ray absorptiometry.