Results 301 to 302 of about 32,518 (302)
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Sucker-rod pumping units
openaire
copy doi
(10.2118/pw0985)
openaccessbutton.org (pdf)
+1 more source
Unit Pump System UPS
2004
openaire
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(10.1007/978-3-322-80331-3_21)
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7. clean energy
environmental sciences
beam pumping unit
mechanical engineering and machinery
6. clean water
control system
medicine
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