screw oil pump

常见例句

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.
单螺杆抽油泵是一种新型的采油泵，结构简单，性能可靠，作业成本低。
New-type centralizers clamped on sucker rod string is developed to stabilize the sucker rod string in a screw pump oil production system.
为了解决螺杆泵采油井杆柱有效扶正问题，研制开发了卡装式抽油杆扶正器。
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.
为此，本文设计了螺杆泵用新型多星形移相变极电机，使得螺杆泵采油系统工作效率进一步提高，同时可以减少了变速装置。