例句與造句

1. Research on injection system of electronic unit pump diesel
   柴油機(jī)噴油系統(tǒng)的研究
2. Unit pump or single plunger unit pump
   單柱塞噴射泵
3. 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
   當(dāng)前，高耗能一直是石油開采成本居高不下的一個(gè)重要因素，有桿抽油機(jī)長(zhǎng)時(shí)間的低效率連續(xù)抽取，造成大量的電能浪費(fèi)，油田為此采取了多種措施來(lái)降低能耗提高產(chǎn)油量。
4. It's difficult to find unit pump in a sentence. 用unit pump造句挺難的