您要查找的是不是：
- low size pumping unit 低矮型抽油机
- Development of the well condition self-adaptive pumping unit. 井况自适应抽油机的研制。
- Modifying balance system of Model LCJ1250 chain drive pumping unit. LCJ1250链条抽油机平衡方式改造的实践
- In the light of the low power factor of the motor on pumping unit, a wattless power dynamic compensation device for improving the power factor is presented. 针对抽油机用电动机无法满负荷运行和功率因数偏低问题,提出了一种用于提高功率因数的抽油机无功功率动态补偿装置。
- The mechanical feature of Y-series motors is hard, which made the motor match the beam pumping unit irrationally, and then results in the low efficiency of the system. 文章介绍了游梁抽油机负载特点,对合理驱动以及电机节能的问题进行了讨论,提出了应综合考虑的观点。
- Dynamics simulation of hydraulic beam pumping unit based on 3D model. 液压游梁式抽油机的三维动力学特性仿真
- New method for power saving of beam pumping units. 游梁式抽油机节能新技术探讨。
- Analysis of fatigue reliability of crank pin of beam pump unit. 游梁式抽油机曲柄销疲劳可靠性分析
- A coupler drive system for pumping unit is developed by using the theory of hydraulic drive of coupler. 摘要运用耦合器液力传动原理，研制成功抽油机耦合器传动系统。
- Application of Watt chain six-bar linkage on pumping units. 瓦特链六杆机构在抽油机上的应用与优化设计
- Chain type long stroke pumping unit is mainly used in mid and anaphase oilfield. 链式长冲程抽油机主要是为开采中、期油田而设计的。
- A Calculation method of kinematic parameters for the unusual shape beam pumping unit. 异形游梁式抽油机运动参数的求解方法。
- At the same time，a special mechanism is used to reduce the upstream queues to the lowest size at ONU. 同时又以特定的算法使ONU中的上行发送缓冲队列最短。
- Finite element analysis and optimum seeking design of frame of chain-drive pumping unit. 链带抽油机机架有限元分析及方案优选。
- Analysis of kinetic and dynamic characteristics of pumping unit with six-bar linkage. 六连杆抽油机的运动和动力特性分析。
- CYJ10?3?0?53HB pumping unit is reconstructed into CYJ210?4?8?53HB(G)phased heam puming unit,with notating mule head. 利用CYJ10 3.;0 53HB型常规抽油机改造成CYJZ10 4
- It is the focus problem for anthracitic coal production enterprise to increase percentage of lump coal and reduce amount of lump coal with size smaller than lower size limit. 提高块煤率、降低块煤限下率是当前无烟煤生产企业关注的焦点问题。
- Milling the keyway on the crank of a beam pumping unit by using Model T6916B boring machine was investigated. 对利用T6916B镗床铣削加工游梁式抽油机曲柄键槽进行了探讨。
- However, banks grant loans of lower size and more collateralized loans to the firms they are also on boards in order to alleviate the problems of lenders' conflict of interest. 此结果显示银行在进入董监事会后，面临同时身为股东与债权人的利益冲突，所以银行会减少融资额度、提高担保放款契约承做机率以来消除本身的利益冲突。
- The design scheme and working principle of a broad-belt hydraulic pumping unit are presented. 提出了宽带液压抽油机设计方案，以及设计结构和工作原理。
