He went ahead, as though the surface were made of stone.

It depends on things like the material that the surface is made of.

The concrete surface made by the Germans is still in use today.

If the surface is made very thin, there will be less light absorbed by the device.

The surface above them was made of individual plates, held in place by a suspended framework.

A float is used after the surface has been made level using a screed.

The administration is located in a twelve story building with surface made of marble and granite.

He finally reached the edge of the pool, its surface made from the same material as the rest of the city.

Some say the surface of the sun is made of phaal.

Such a surface was made for fighting, and Worf wished he had a partner to help him test it.