There has been some controversy over the expected and actual usage of the tunnel during its initial operation.

The short definitions above are only an approximate indication of the actual usage.

I made the point earlier that descriptive facts about actual usage do not necessarily determine what is to be included in a language course.

This is the gap between the total potential for the market and actual current usage by all consumers in the market.

Customer charges are based on a combination of actual usage and cost allocation.

The only real standard, aside from individual prejudices, is the actual usage of educated people.

With all the wireless systems, pricing is based on actual usage rather than connection time.

Thus, actual usage may not be a direct or immediate consequence of such attitudes and intentions.

While this is not ideal for a definition it results from actual usage in international literature.

One month she receives a bill that is triple her actual usage.