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METHOD OF AND APPARATUS FOR FIRING HOT WATER AND POWER BOILERS BY MEANS OF WHIRL FLUIDIZED PHASETICHESKIKH KOTLOV S POMOHH'JU VIKHREVOJJ FLJUIDNOJJ FAZY
METHOD OF AND APPARATUS FOR FIRING HOT WATER AND POWER BOILERS BY MEANS OF WHIRL FLUIDIZED PHASETICHESKIKH KOTLOV S POMOHH'JU VIKHREVOJJ FLJUIDNOJJ FAZY