моназит боловсруулах урсгалын хуудас
Дэлгэрүүлж унших. Prasuhn, Alan L. Fundamentals of Hydraulic Engineering. 1992. Oxford University press. South Dakota. Vincent J. Zipparro, Hans Hasen (Eds), Davis'''' Handbook of Applied Hydraulics, McgrawHill, 4th Edition (1992), ISBN, at Amazon Classification of Organics in Secondary Effluents.