This can be seen in private toll roads where more than one operator controls a different section of the road.

Passengers are invited to sit upon the center piece while an operator controls an increasing rate of rotation.

He glanced around to see if some operator he'd missed controlled this, but he was alone in the car.

For now, human operators do control even the computerized systems.

Advanced systems include features that help operators to control and optimise production automatically.

Usually the operator controls the machine from a control room on the surface of the ground.

Human operators control the cranes only when they are ready to put the containers on trucks for transfer to a ship.

Once the 20 seconds were over, the operators controlled them for the following 2-minute operator control period.

This is difficult to achieve since the operator cannot control exactly how the ball will roll into the machine and between the wheels.

The operator controls the height at which cutting takes place and can trim down to ground level quite easily.