And the prudent expenditure of these pub lic monies has proved cost-effective.

These proved reliable and cost-effective, so many cheaper machines now incorporate microcontrollers rather than electromechanical timers.

Keedair doubted that raiding Arrakis would prove cost-effective.

Delegate if it will prove more cost-effective to do so.

The building and filming of the flying models proved both cost-effective and timely.

An evaluation of the project must be presented to Congress by April 1993, and many health experts say they are sure the shots will be proved cost-effective.

If it proves cost-effective, it could balance out emissions from cars and aeroplanes.

None of the projects have been open for more than five years, but they are already proving more cost-effective than shelters, city officials say.

Some experts also suggest that better tests for arterial inflammation might be developed, and they wonder if the current test would prove cost-effective in wide use.

We were concerned about the potential cost, but following research, we joined a scheme run by our local Chamber of Commerce, which proved extremely cost-effective.