常見例句雙語(yǔ)例句The single screw oil pump is a new type extracting oil pump, which is simple in structure and high in performance with low working cost.單螺桿抽油泵是一種新型的采油泵，結(jié)構(gòu)簡(jiǎn)單，性能可靠，作業(yè)成本低。New-type centralizers clamped on sucker rod string is developed to stabilize the sucker rod string in a screw pump oil production system.為了解決螺桿泵采油井桿柱有效扶正問(wèn)題，研制開發(fā)了卡裝式抽油桿扶正器。To settle the problem, a novel energy-saving motor used in screw pump was designed, and this motor could make efficiency of screw pump oil system improved and variable speed device decreasing.為此，本文設(shè)計(jì)了螺桿泵用新型多星形移相變極電機(jī)，使得螺桿泵采油系統(tǒng)工作效率進(jìn)一步提高，同時(shí)可以減少了變速裝置。 返回 screw oil pump