Payvasthoi mudokhil, payvasthoi khimiyavie, ki dar natijai ba kovokii panjarai kristalli yo molekulai yagon modda daromadani molekulai moddai digar hosil meshavand; molekulahoi qabulshavavda boyad konfigurasiyae doshta boshand, ki ba shakli „kovoki muvofik, oyad. Molekulahoi dokhilgashtaro dar Payvasthoi mudokhil quvvahoi bayni molekulavi nigoh medorand. Payvasthoi mudokhil moddahoi noustuvor buda, dar mahlulho …
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