Sannadkii 1951-kii, shirkadda 3M ee dalka Maraykanka ayaa soo saartay warqad kuleyl ah, ka dib in ka badan 20 sano, sababtoo ah dhibaatada tignoolajiyada koromosoomyada si sax ah looma xalin, horumarka ayaa ahaa mid gaabis ah.Tan iyo 1970-kii, yaraynta walxaha xasaasiga ah ee kulaylka, cusboonaysiinta mashiinnada fakiska iyo horumarinta dheeha cusub ee aan midab lahayn ayaa lagu guulaystay.Waraaqaha kulaylka ayaa loo isticmaalay duubista astaanta, agabka kombayuutarka iyo agabka daabacadaha.
Ku dhawaad nus qarni soo socda, iyadoo horumarinta dhaqaalaha suuqa, codsiga waraaqaha kulaylka ah ayaa si tartiib tartiib ah lagu dabaqay nidaamka khasnajiga ee huteelada waaweyn, daabacaadda dalabaadka keenista, calaamadaha express, calaamadaha shaaha caanaha iyo beeraha kale.
Haddaba sidee loo soo saaraa warqad kuleyl ah?
Marka hore, waxaa lagama maarmaan ah in la isticmaalo warqadda saldhigga ah oo leh cabbir yar oo aan fiicneyn oo loogu talagalay precoating ugu horreeya, sameynta hore ee hore;Ka dib marka la qalajiyo, dahaarka leh cabbirka qayb yar oo khafiif ah ayaa loo isticmaalaa dahaarka labaad ee hore, sameynta dahaarka hore ee labaad;Ka dib marka mar kale la qalajiyo, dahaarka labaad ee hore ee dusha sare, samaynta dahaarka dusha sare, ugu dambeyntii, duubista warqaddu waxay noqon kartaa.
Waqtiga boostada: Jul-25-2022