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中文
Calculation of load efficiencies of pumps and variable frequency speed-controlling electric motors in oil-piping system
CAO Yu-quan, WANG Qiong, LI Meng-da, SUN Hui
Editorial office of ACTA PETROLEI SINICA . 2005, (
2
): 107 -110 . DOI: 10.7623/syxb200502025