They were used to start a heavy train or maintain low speed under demanding conditions.

Some form of persuasion or mind control is used to recruit and maintain members.

Legislation has also been used to increase and maintain a demand for recycled materials.

Policy is used to set up and maintain a user desktop session.

Language for girls, to the contrary, is used to confirm and maintain intimacy.

This we have used to construct and maintain a database of management job evaluation results.

Many people use the money to pay taxes or maintain their houses; others need money to live on.

Also, fiscal policies are used to stabilise the terms of trade and maintain them at their natural levels.

The rental fee is used to preserve and maintain the guard station.

In surgery, it is used to induce rather than maintain anesthesia.