unit pump meaning in Chinese

泵组
单位泵
整体泵
组合泵

Research on injection system of electronic unit pump diesel
柴油机喷油系统的研究
Unit pump or single plunger unit pump
单柱塞喷射泵
Currently , the master reason of high costs in petroleum exploitation is more consumed energies , because the rod - pumping units pump continuously and long time in low efficiency . the management of oil fields has taken measures to economize energy and increase the output of oil
当前，高耗能一直是石油开采成本居高不下的一个重要因素，有杆抽油机长时间的低效率连续抽取，造成大量的电能浪费，油田为此采取了多种措施来降低能耗提高产油量。