The operator also monitors the surface to make sure that it is undisturbed.

The operator also monitors pedestrian access and emergency buttons and has the ability to lock down all exit points.

The utility's operators monitored the movement of this power on electronic boards at its Upper West Side control center.

As the game progresses, the operator monitors changes in light and enters any color changes into the system.

The television industry is very structured and operators carefully monitored.

The operators of on-line services cannot read or monitor private E-mail messages, unless directed to do so as part of a law-enforcement agency's investigation.

In the operator-managed approach, the operator is monitoring its network load and user behavior.

Meanwhile, the more information the site offers, the closer its operators must monitor their pricing strategy.

"Our operator will monitor the contact," he said.