Eventually the wax would be well-distributed over the dirt particles.

The woman had breathed in dirt particles after she had been buried.

Your footprints pressed into dirt particles, which formed a reflective surface.

Figure on the right shows the model of interaction between N spatulas, a dirt particle and a planar wall.

The pump's air intake is filtered by a screen to exclude dirt particles large enough to damage the system.

Admittedly, the media was quite coarse, and so did not trap smaller suspended dirt particles.

Pollution is in the air, and fuel can be contaminated with water, dirt particles and other debris.

While a leather coat may not look dirty, the skins probably have dirt particles in them.

A fierce wind started up, and we had to partly shut our eyes just to keep out the dirt particles.

Not to mention how badly scratched the screens will get from dirt particles on third world children fingers.