Glass is used to provide light and allow vision through otherwise opaque surfaces.

It may be used in kidney disease to keep calcium levels normal and allow normal bone growth.

The model payload was used to assess the feasibility of the science objectives and allow for system cost estimates.

This evidence can then be used to modify the contract or allow it to terminate and not to offer renewal.

These are used to solve the game's puzzles and allow the player to continue further into the game.

According to economic theory, a "factor of production" is used to create value and allow economic performance.

This style was used to produce the series on its incredibly low budget and allow for the actors to improvise.

These calls may be used to coordinate the movement of herds and allow male elephants to find mates.

Machine vision is already used to inspect products and allow robots to "see" what they are working on.

This can be used to both assist amateur players and allow expert players to perform speed runs.