This is an expensive but effective method of construction for synthetic bags.

Using such equipment was the only alternative to the more expensive method of transport by air.

He decides to leave the village alone and use the more expensive and difficult method of construction.

Told him was a method, expensive in investment but cheap in running expenses.

This is simple to use yet provides a performance benefit when the values have expensive methods.

Doing it yourself is certainly the least expensive method.

Tiling was an expensive and unknown method at the time.

The initial step, and the least expensive method, involved spies who were supposed to report all ship movements.

"The idea of weaning yourself off oil with expensive methods makes less sense."

Is this not an expensive method which also has security implications?