This integrated circuit forms a major part of the computer.

The citric acid cycle plays a crucial role in the energy production of cells.

He is skilled in designing logic circuits.

This device operates using a circular current.

This old science book explains the concept of circular current in detail.

I measured the current using an ammeter.

Control characters are used to cause special actions on the computer.

The control rod adjusts the reaction of the nuclear reactor.

He is operating the equipment in the control room.

This bottle is reusable.