The bottom level, the operational level, involves aspects such as maintaining road position and the use of the car controls.

Bhagat Singh also maintained the use of a diary, which eventually grew to include 404 pages.

We maintain and limit the use of that information to the Opt-in permission you have provided at the time you use the tool.

The newspaper had as its main ambition to maintain the use of the German language.

He also maintained the use of his diaphragm for breathing.

The diocesan shield maintains the use of the silver color and the black cross crosslets fitchée.

They maintained the use of swords out of custom rather than need, to preserve the letter of the Compact.

For example, he says, the island has maintained the use of traditional Chinese writing, while China switched to simplified characters.

True to its nineteenth-century roots, it maintains the use of ornament in a civic structure.

We fully agree with the Commission proposal to maintain the use of one, two or three varieties.