You'd better have a hard power control to get anything done.

Another one must have been occupied with the power control.

In the case of a variable systems, they are used to provide overall power control for the system.

Then Scott must have shoved the power control full over.

One character looks at another and takes control of his mental powers.

He felt around for the power control and activated it, but was not very surprised when nothing happened.

He switched the gun on, turned its power control to maximum, then held it behind his back.

All techniques must be demonstrated with power, control, and body mechanics.

"According to everything I know about power control, that warp core should be cold."

He had been in control of his powers from the get-go.