conventional workover rig
常見例句
- In the light of the status of energy waste of conventional workover rigs, Model XXJ300/500 hydraulic energy-storing workover rig is developed.
針對現(xiàn)有常槼脩井機存在的能量浪費現(xiàn)象，研制成節(jié)能型XXJ300／500液壓蓄能脩井機。 返回 conventional workover rig