有杆抽油泵是有杆抽油装置的最关键部分。
The rod pumping pump is the most important key parts of the rod pumping system.
介绍了新型液力抽油装置的组成及液压驱动系统的工作原理，该装置综合了液压有杆抽油装置和水力活塞泵抽油装置两方面的优点。
The structure compositions of a new type of hydraulic driving pumping oil installation and the working principle of its hydraulic driving system are introduced.
介绍了新型液力抽油装置的组成及液压驱动系统的工作原理，该装置综合了液压有杆抽油装置和水力活塞泵抽油装置两方面的优点。
The structure compositions of a new type of hydraulic driving pumping oil installation and the working principle of its hydraulic driving system are introduced.
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