TY JOUR TI ENGINEERING ASPECTS OF REALIZATION OF THE CYCLIC POWER SUPPLY AT IRRIGATING DEFROSTING OF GYDROBIONTS KW defrosting KW defroster KW a cyclic power supply JO Vestnik of Astrakhan State Technical University AU Lysova, V.. AU Dulger, N.. PY 2012 IS 2012 PB Astrakhan State Technical University