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QIR

QIR, zifti kuhi (ba rusi-bitum), omekhtai karbogidridhoi sakht yo moei dar ob halnashavandaro guyand. Avvalho ba      asosan neft va hosilahoi tabiii on (boshtar asfalt)-ro nisbat medodand. Holo masolehi asfaltmonandi sunii bad az taqtiri boqimondai neft, zifti angishtsang va slanj, hamchunin ekstrakthoi az torf, angishti bur va g. giriftashudaro niz Q. menomand. Q-ro az zamonhoi qadim istifoda meburdand va bo on obanborhoyu ambori gallaro andova mekardand. Tarkibi asosii Q.-hoi suzishvorihoi sakht az zift va mum iborat ast. Q.-ro dar rohsozi, tayyor kardani masolehi izolyasioni, kompauniho, plastmassaho, lokho va g. istifoda mebarand.

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SADUDDINI HAMMUI Muhammad ibni Juvayni

SADUDDINI HAMMUI Muhammad ibni Juvayni (soli tavallud nomalum — Vafot 1252), yake az namoyandagoni mashhuri …