crossover assembly

用法例句

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。

unit pumping outfit

单独驱动的抽油装置

casing-actuated intermitter

套管控制的间歇抽油装置；套管控制的间歇出油井

mule-head hanger

驴头上挂抽油杆的装置

central pumping power

联合抽油的中心动力装置

Design of Energy Saving Controller for Beam-pumping Units;

游梁式抽油机节能装置控制器的设计

Research on the Method and Apparatus of Alternating Magnetic Flux Leakage Testing for Sucker Rod

抽油杆交流漏磁检测方法与装置研究

Development and Application of φ89 mm Tubing Swabbing Device

φ89mm油管抽汲装置的研制与应用

Fault Analysis and Solution for Pumping Unit Brake Gear

抽油机刹车装置故障分析及解决方案

Study on the Dynamic Sealing Device of Pumping Units by Injecting Colloid;

抽油井动态注胶式光杆密封装置的研制

The Integration of Beam Pumping Unit Energy-saving Design Drag

游梁式抽油机一体化节能拖动装置设计

Design of the test device for the frictional abrasion of the sucker rod centralizer

往复式抽油杆扶正器摩擦磨损试验装置设计

Chemical cleaning for Bauer Ring packing in the extraction tower of furfural unit on oil refinery

炼油厂糠醛装置抽提塔鲍尔环化学清洗

Study on TWACS of Concentrator Equipment for Pumping Unit Remote Monitor System

抽油电机远程监测系统集中器装置的双向工频通信研究

Energy Saving Analysis of Secondary Balance Aohieved by Using of Spring Energy for Pumping Unit

用弹簧储能装置实现抽油机二次平衡的节能分析

on load tap changer

带负载抽头变换装置

wet system of evacuating

（用喷水空气泵抽空的装置）湿体系抽空

To remove(liquids or gases) by means of a suction device.

用抽吸装置抽吸（液体或气体）

The University of Petroleum(Beijing) thereby develops a simulation test device for hydraulic subsurface pump for gas and liquid two-phase flow.

石油大学(北京)为此研制了一套气液两相流液压抽油泵模拟试验装置。