An important operation on formal power series is coefficient extraction.

The raid was seen as one of Mexico's most important anti-drug operations last year.

Too old for the job, and afraid that soon I would fail her in some important operation.

He then returned to the company, which had operations important to the war effort.

"They were doing an important cultural operation, raising the veil on a very painful period of their recent history."

And leaving Hans to his important operation, we started on our expedition.

"That's not a good time to carry out some important operations."

The destruction of missiles, which is an important operation, has not yet begun.

But those funds came out of other important foreign operations accounts.