"varying duration" is a correct and usable phrase in written English.
It can be used to describe something that changes or differs in length or time span. Here is an example: "The construction project will require varying durations for completion, depending on the weather conditions and availability of materials."
He accepted invitations for teaching gigs of varying duration, all over the country.
Mourning rites, which are of varying duration and rationale, usually weigh more heavily on women than on men.
In many cases, migrants would make repeated visits of varying duration to Libya to boost their annual income while maintaining their home in their country of origin," she says.
They often hatch in about two weeks but may, under certain circumstances, undergo a period of varying duration in which no growth occurs.
The agency noted consumer complaints of "unexpected braking of varying duration, including several allegations of rapid decelerations from highway speeds to near stop in highway travel lanes".
Five other South American countries shook off dictatorships, of varying duration and ferocity, between 1982 and 1989: Argentina, Bolivia, Brazil, Paraguay and Uruguay.
The head of the board's work permit unit, Alejandro Firpo, said his agency issued permits of varying duration but had a very limited authority to follow up on abuses, which was a matter for unions, employers and workers.
Then they were instructed to make noises of varying duration and volume, resulting in a rich tapestry of acoustic, electronic and human sounds that unfolded against kaleidoscopic flashes from the umpteen devices in the dimly lighted plaza.
The head of the board's work permit unit, Alejandro Firpo, said his agency issued permits of varying duration but had a very limited authority to follow up on abuses, which is a matter for unions, employers and workers.
Some owners have complained to the agency of "unexpected braking of varying duration, including several allegations of rapid decelerations from highway speeds to near stop in highway travel lanes".
Episodes of varying duration c.
