But, they add, a process that proves workable in a small laboratory model would be prohibitively expensive on a commercial scale.

Practically, this meant that any 761 chassis could be easily adapted should the concept prove workable.

If the system proves workable in the trials, it is expected to begin commercial operations within months.

But if they do prove workable, the treaty would have to be modified or replaced to permit building them.

They say no formula imposed from the top down will prove workable.

They may even come in on regular television channels if the latest proposals for data compression prove workable.

The new arrangements proved no more workable than the old.

Computers with such chips, if they proved workable, could be very fast.

It seeks a form of democratic government that will prove workable over time.

Other, more limited efforts, where private companies have managed a few schools in a larger district, have proved workable.