№6|2011
ENERGY AND RESOURCES SAVING
bbk 000000
UDC 621.65:62-531.3:628.1/.2
МProcedure of Estimation of Efficiency of an Adjustable Electric Drive in Pumping Plants of Water Supply and Wastewater Disposal
№6|2011
ENERGY AND RESOURCES SAVING
bbk 000000
UDC 621.65:62-531.3:628.1/.2