Remains of the process houses and other mill leats have been carefully conserved.

That fuel will now be carefully conserved, he said.

The buildings are not dilapidated or dirty buildings but look to be carefully conserved and clean.

It is essential that units are carefully conserved in these calculations.

Remains of process houses have been carefully conserved.

Historic paint finishes have been carefully conserved to their original hue.

Their friendship is a high and holy thing and it must be carefully conserved.

A significant proportion of the limited production of Rally cars have been carefully conserved and see use in classic events.

A segment of the site has been carefully conserved, giving some idea of the size of this industry.

Even if they have carefully conserved the air, they must be in the red.