Also found in: Acronyms, Wikipedia. Rome wasn't built in a day. Rome wasn't built in a day. Important work takes time. This expression functions as an injunction or plea for someone to be patient. For example, You can't expect her to finish this project in the time allotted; Rome wasn't built in a day . This phrase was a French proverb in the late 1100s but was not recorded in English until 1545.
The increasing popularity of carpets made from polyester - commonly referred to. today as PET (polyethylene terephthalate) - signals a change in the perception of. what was once considered a less than ideal fiber. Thanks to technological advances in yarn processing and improved carpet. construction techniques, polyesterâs purported weakness as a performance. fiber has been largely overcome.
Choosing Carpet Fiber: Olefin (Polypropylene). Olefin and polypropylene are two names for the second-most widely used carpet fiber after nylon. Olefin is not as durable as nylon, but it's chemically inert and resists acid and bleach well.Olefin fiber carpets can be cleaned using strong cleaners without risk of damaging the fibers.t's also a good choice for computer rooms, because unlike nylon it does not create static-electric charges. Look for olefin carpet that has a low pile or low loops in its construction. This will help it to resist being crushed or matted. Olefin fiber carpets of this type are common in commercial applications.