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.

Spin-density waves are observed in certain materials.

The population densities of the two cities are significantly different.

The fog densened as the night grew darker.

She densens the fabric before sewing.

The fog is densening, making it difficult to see.

The fog is densening as the night goes on.

The densening of the fog made it difficult to see.