They work on the same principle as the fire suits.

Our earth has always worked on the old principle that many are called and few chosen.

But the following ones work on the principle of the second wheel.

He had seen toys that worked on the same principle.

As I said, we worked on the 'need to know' principle.

There are various hand pumps which work on the same principle.

The system works on the principle that images can be remembered more easily than numbers.

I should also mention that its believed your brain works on a very similar principle.

My crowd worked strictly on the 'need to know' principle.

This works essentially on the same principle as laser treatment.