So it is a useful addition to our equipment.

"This is a useful addition to the literature, and we need more studies of high quality."

Either is a useful addition to the six standard colours.

She had decided, for her own reasons, that I was a useful addition, and the others, even the children, followed her example.

It quickly proved to be a useful addition to the fleet.

A very useful addition is the communications room created between the two halls in 1978-1979 at a cost of £619.69.

I am, however, accepting some ideas from Members which are useful additions.

They are a useful and welcome addition to this very good report.

It proved a useful addition to the station and so became a permanent feature.

Rough around the edges, but he would be a useful addition to them.