Lots of hard surfaces.

I'm better on hard surface

1.37 meters onto a hard surface.

Off the beaten path, no hard surfaces to reflect sound.

He'd need a clean print, preferably off a hard surface.

I think I'm better off on a hard surface.

You must have landed on a hard surface.

The apparatus is tapped three times on a hard surface after filling.

Fuel tanks were not installed on level ground or hard-surface platforms;

We need to create a sterile environment. Find a hard surface, wash it down,