Түгээмэл тархацтай ашигт малтмалын хуримтлал-хромын …
The nature of chromium Chromium, element symbol Cr, atomic number 24, relative atomic mass 51.996, belongs to the transition metal element of group VIB of the periodic table of chemical elements. Chromium metal is body-centered cubic crystal, silver-white, density 7.1g/cm³, melting point 18...
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The study findings on the correlation between Ulaanbaatar's house prices and air quality level indicate that the air quality index influences the house market prices differently in districts of Ulaanbaatar, 0.9% in Songinokhairkhan district, 0.7% in Khan-Uul district, 2.7% in Bayanzurkh district and 0.1% Chingeltei district.