But we can make much more efficient use of what we're using.

To deal with the growth, states are trying to make more efficient use of what they have.

The result, we are learning, can be more efficient use of public resources.

In general that would not be an efficient use of your time and effort.

What was the most efficient use of this short time?

We could make more efficient use of power generation too.

However, I also expect the efficient use of resources, both financial and human.

If it is an efficient use of resources, they will do so.

Efficient use of space is the test, and I can add some figures to the ones he gave.

Deep plan buildings make more efficient use of site area.