2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
Npaj siv ua npuas ncauj hnub rov qab mus rau Mayans thiab Aztecs kom deb li deb li 500 BC. Hauv the 1900's, txiv neej tsim, lossis hluavtaws, ua npuas ncauj pib tsim. Niaj hnub no, ob qho tib si ntuj ua npuas ncauj thiab hluavtaws ua npuas ncauj yog siv.
Thaum twg lawv pib siv ua npuas ncauj hauv rooj zaum?
Polyurethane tau ua thawj zaug hauv lub tebchaws Yelemes thaum ntxov li xyoo 1937. Txawm li cas los xij, kev lag luam tsim ua npuas ncauj yooj yim hauv Tebchaws Europe pib hauv 1954. NASA (North American Space Agency) pioneer txoj kev loj hlob ntawm 'nco ua npuas ncauj' nyob rau hauv 1966, thiab tsis ntev los no nws tau nrov dua rau siv nyob rau hauv upholstered rooj tog.
ua ntej ua npuas ncauj yog dab tsi?
Antique Furniture - Ntau xyoo dhau los, ua npuas ncauj cushioning yog tsim los siv roj hmab es tsis yog roj av- raws li polymers zoo li polyurethane. Cov txheej txheem tsim tau zoo ib yam, tab sis nrog cov roj hmab txau ua npuas ncauj, uas muab cov cushions ntau lub caij nplooj ntoos hlav, thiab ua rau cov khoom zoo dua li cov polyurethane ua npuas ncauj.
pua npuas hu ua dab tsi?
Polyurethane ua npuas ncauj yog cov khoom lag luam ntawm cov roj av thiab yog cov ua npuas ncauj ntau tshaj plaws siv hauv lub txaj txaj.
Thaum twg Upholstery tau tsim?
Upholstery thiab npog yog siv rau cov rooj tog tsim los zaum lossis pw. Los ntawm… Springs, uas tso cai mos, cov duab loj, yog thawj zaug siv los ntawm upholsterers nyob rau hauv the 18th century; helical los ntawm nruab nrab-19th caug xyoo, lawv tau tom qab flattened rau siab tshaj plaws resiliency.
Pom zoo:
Thaum rov tsim kho cov ntaub pua plag feem ntau yog?
Kev nom kev tswv, cov ntaub pua plag feem ntau yog cov tseem ceeb; lawv suav nrog feem ntau ntawm Republican cov thawj coj thiab cov koom txoos. Txawm li cas los xij, Republican Party nyob rau hauv txhua lub xeev tau nce zuj zus ntawm cov kev saib xyuas ntau dua ntawm ib sab thiab ntau Radical carpetbaggers nrog lawv cov phooj ywg dub ntawm lwm qhov.
Thaum twg cov ntaub ntawv pom pom tau tsim?
In 1644, Michael Florent Van Langren, tus kws tshawb fawb Flemish, ntseeg tias tau muab thawj qhov pom kev sawv cev ntawm cov ntaub ntawv txheeb cais. Leej twg invented data visualization? Lub xyoo 1960 thiab 1970 tau pom qhov tshwm sim ntawm cov kws tshawb fawb xws li John W.
Thaum twg cov ntaub qhwv tau tsim?
Nyob hauv the 19th century, cov pawm niaj hnub tau pib ua kom zoo thiab cov niam hauv ntau lub ntiaj teb siv cov khoom siv paj rwb, tuav rau hauv qhov chaw nrog fastening - nws thiaj li muaj kev ruaj ntseg tus pin.. Cov ntaub npuag hauv Tebchaws Meskas yog thawj zaug tsim tawm hauv xyoo 1887 los ntawm Maria Allen.
Lub tsev so twg hloov cov ntaub pua rooj?
Marriott lav nws cov npog tau hloov pauv ntawm cov qhua ntawm nws cov tsev so JW Marriott thiab Renaissance. Loj peb thiab plaub lub hnub qub chains xws li Hilton, Sheraton, thiab Westin hais kom cov tub txib "ua tib zoo saib" ntawm txaj txhua hnub, tshem cov txaj txaj rau kev tu thaum tsim nyog.
Thaum twg kuv tuaj yeem muab cov ntaub pua plag rau hauv cov plag tsev ua kom tiav?
Tau 3 lub lis piam ua ntej muab cov ntaub pua tsev rau ntawm cov ntaub pua tsev tshiab tshiab / ua tiav. Tos 48 mus rau 72 teev tom qab cov ntoo tawv tau ua kom tiav / tiav ua ntej "PLACING" rooj tog rov qab rau hauv nws qhov chaw.
