"If you're going to say one weapon's better than the other you have to gauge it on average efficiency of usage."

The electric efficiency provisions will also probably increase the average efficiency of refrigerators, lights and similar devices in years to come.

However, average efficiency over a driving cycle is lower than peak efficiency.

These rugged fans offer high pressure capability with average efficiency.

The average efficiency of world electricity production in 2009 was c.37%.

The average efficiency of the SX circuit is 99.9%.

Old plants drag the average efficiency down.

Secondly, we have to acknowledge that the average efficiency of road transport conversion chains is surprisingly low, and a step change is needed.

Fleet efficiency describes the average efficiency of a population of vehicles.

Typical solar panels have an average efficiency of 15%, with the best commercially available panels at 21%.