PT65541A - Flotation process with low turbulence level - pumps two ingredient medium into fluid with density and kinetic energy within set limits
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Flotation process with low turbulence level - pumps two ingredient medium into fluid with density and kinetic energy within set limits
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METHOD FOR REDUCING THE FRICTION RESISTANCE OF A DISPLACEMENT SHIP, DISPLACEMENT BODY WITH REDUCED FRICTION RESISTANCE, METHOD AND DEVICE FOR PRODUCING MICROBUBBLES FOR REDUCING FRICTION.