With more development, the technology could prove useful in detecting land mines.

All of this is precisely where Western technology has proved itself.

The questions about safety frustrate those close to the project, who point out that the technology has proven itself in other cities.

At best, technology proved a mixed blessing in this case.

Critics argue the technology will prove expensive and is several years away from being proven.

Your technology will prove little use in the midst of anarchy.

At the end of the day, technology would prove the deciding factor.

If a new technology proves itself, the solution may be sitting in your garage.

"The problem is that you're running on the theory of the technology before the technology proves itself," he said.

However the technology proved itself and was used on a number of other mountain railways.