At that moment, something more powerful than any human force went into operation.

He did not know when the plant would go back into operation.

On June 20 of that year, the service went into full operation.

It is expected to go into full operation in 2012-13.

The plant went into operation at the end of 2009.

The new model is expected to go into regular operation within about a year.

The system is expected to go into operation by the end of 1989.

The system is expected to go into operation later this month.

They would go into operation by the end of next year.

Officials hope that it, too, will go into operation soon.