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液压泵向低噪声化迈进不仅液压元件,整个工业机械的低噪声化是时代的要求。液压装置的噪声源仍然是液压泵。1972～1973年以后,各公司在降低泵的噪
Hydraulic pump to low noise into the hydraulic components not only the entire industrial machinery of low noise is the times requirements. The noise source of the hydraulic unit is still the hydraulic pump. From 1972 to 1973, companies were reducing the pump noise