About the need to replace pumping equipment or impellers of main pumps when pumping capacity of oil and petroleum products changes by V. V. Shalay, M. O. Myznikov, M. I. Gildebrandt, E. V. Khodoreva

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Selection of modes and pressure regulation when pumping oil and oil products to save energy by V. V. Shalay, M. O. Myznikov, M. I. Gildebrandt, V. A. Grinevich

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