His locomotives were amongst the most efficient of the time.

Several algorithms are known for solving the 2-satisfiability problem; the most efficient of them take linear time.

The Lindsay plant, with 74 employees, is the least efficient of its tire-cord operations, the company said.

Intravenous route is the most efficient, but also one of the most dangerous.

Customer reporting is efficient and increasingly free of error.

At the time, its plants were among the least efficient of those run by the nation's largest steelmakers.

After winning the race, the money must be invested in faster and/or more efficient parts to improve the performance of the vehicle.

For this reason, the mechanical convection oven is the more efficient of the two processes.

But analysts contend that it remains the least efficient of the nation's auto makers.

Generally accepted as the most viciously efficient of prehistoric hunters on land.