Nurses are the most expensive single resource in the hospital sector.

It is a valuable, if expensive, resource (with free searches, of course).

In some cases school finances are being pooled to fund in-service training, large expensive resources and joint activities for the children.

It also doesn't need to cost much or require expensive resources.

For example, destructors are often used to free expensive resources such as files or network handles.

And consumption pricing always leads to conservation of expensive resources.

The aim is to share an expensive resource.

Colonists had wasted, the report said, such expensive resources before on minor matters that required no response.

A small number of highly-specialised, expensive resources which cater for people with multiple handicaps.

It is indeed one of the most expensive resources, from the point of view of energy consumption.