The line was built entirely from the surface using the cut-and-cover method.

Once the player has landed on a floor, he can move across its surface using the arrow keys.

Workers hunched over each writing surface using handheld calculation devices.

Calculate the surface normal of the heightmap, typically using the finite difference method.

With most knives it is best to move the cutting edge over the surface using the technique shown in the drawing.

Starting in the late 1950s, artificial surfaces using a combination of rubber and asphalt began to appear.

Unicycle hockey is played on a hard surface using unicycles as the method of player movement.

"We're trying to figure out a way to create a shiny surface using the same process," he said.

The game is played from raised artificial teeing surfaces using a tee and it has its own handicap system.

They attach themselves to stones or to any other hard surface using a byssus.