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a major feature of the plan is limiting intake of sodium, although the diet is also rich in potassium, magnesium, calcium, as well as protein.
مشخصهٔ اصلی این برنامه محدود کردن مصرف نمک است و با این وجود، رژیمی غنی از پتاسیم، منگنز، کلسیم، و پروتئین میباشد.
the enzyme is physiologically stimulated by divalent cations (e.g., magnesium) and is allosterically activated by the magnesium/atp complex.
این آنزیم به طور فیزیولوژیک به وسیله کاتیونهای دوظرفیتی (مانند منیزیم) تحریک میشود و بوسیله کمپلکس منیزیم/ atp فعال میگردد.
abstract aynak is the largest known copper deposit in afghanistan, with indicated resources of 240 mt grading 2.3% cu placing it in the ‘giant’ category. host rocks are neoproterozoic metasediments comprising dolomitic marble, carbonaceous quartz schist and quartz-biotite-dolomite schist con- taining garnet, scapolite and apatite. chalcopyrite and bornite dominate the hypogene ore with lesser pyrite, pyrrhotite, cobaltite and chalcocite, and rare sphalerite, molybdenite, uraninite and barite. sulphides occur as bedding-parallel laminae, disseminations, metamorphic segregations and crosscutting veins. sulphide δ34s ratios range –14.5 to +17.3‰ in bedded and disseminated sulphides (n = 34). this broad range favours biogenic reduction of seawater sulphate as a major source of sulphur, although thermochemical reduction processes are not precluded. the narrower δ34s range of –6 to +12.2‰ in vein and segregation sulphides (n = 21) suggests localized redistribution and partial homogenization during metamorphism. geochemical associations sug- gest that al, p, ca, ti and fe were primary sedimentary constituents whereas cu, mg, s, se, as, co and bi were introduced subsequently. we infer that aynak originated as a shale- and carbonate- hosted stratabound replacement deposit, resembling orebodies of the central african copperbelt, although underlying red-beds are absent at aynak and mafic volcanics were the probable copper source. these giant deposits formed worldwide in the cryogenian probably due to marine enrich- ment in copper, magnesium and sulphate coincident with profuse basaltic volcanism and ocean oxidation.
چکیده عینک بزرگترین کانسار شناخته شده مس در افغانستان است ، با منابع مشخص 240 mt با درجه بندی 2.3٪ مس آن را در گروه "غول" قرار داده است. سنگهای میزبان فراسنجهای نئوپروتروزوییک متشکل از سنگ مرمر دولومیتی ، شیار کوارتز کربنی و شیست دولومیت کوارتز بیوتیت حاوی گارنت ، اسکاپولیت و آپاتیت هستند. کالکوپیریت و بورنیت با کمبود پیریت ، پیروتیت ، کبالتیت و کالکوسیت و اسفالریت نادر ، مولیبدنیت ، اورانیت و باریت بر سنگ معدن هیپوژن مسلط می شوند
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