This vision has been worn down over time by a number of factors.
CAIRO — The concrete steps leading from Ahmed Muhammad Sayyid's first-floor apartment sag in the middle, worn down over time, like Mr. Sayyid himself.
Systems that break fingerprints into simplified measurements may not be able to read the wide array of fingerprints, including those worn down over the years by manual labor.
Most motors use carbon brushes to transfer current from the power source to the electromagnet; the brushes wear down over time, emitting carbon dust as they do, until eventually the motor stops working.
The Altai were formed during the great orogenic (mountain-building) upthrusts occurring between 500 and 300 million years ago and were worn down, over geologic time, into a peneplain (a gently undulating plateau with generally accordant summit heights).
She has taken a well-known – even well-worn – story and injected it with thrumming vitality: reproducing the sights, sounds and pungent smells of London in the 16th century; recomplicating characters that have been worn down, over hundreds of years, to attenuated, if gaudy, ciphers.
The iPhone home button wears down over time and it makes noise when you click it.
But these bearings wear down over time and must be sealed carefully against vacuum and other things that might damage them.
While some people complain about this for long trips, the real issue is that battery performance wears down over time after a certain number of recharge cycles.
Even the best armors wear down over time.
