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The average speed of the movement on a route calculated as the distance (route length) divided into the general time of passing

– magnitude characterizing a capacity to reflection of any surface; it is expressed by a ratio of radiation of reflected surface and a solar radiation that came on a surf

боладаги ақлий заифлик даражаси бўлиб, Дебильность - умственная отсталость в такой степени, когда ребёнок может Degeneracy is mental retardation to the extent that a chil