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- single screw rod pump 单螺杆泵
- double screw rod pump 双螺杆泵
- Anti-sand rod pump with helically-grooved barrel. 泵筒带螺旋槽的新型防砂卡抽油泵。
- According to overall principle of double helix single screw pump for linear optimization,we ensure the optimization goal and restrain terms to set up a noptimization mathematics model. 根据双头单螺杆泵线型优化的总体原则确定优化目标、约束条件,建立短幅内摆线线型的优化数学模型。
- Complete stoppering of the vials usually by hydraulic or screw rod stoppering mechanisms installed in the lyophilizers. 使用安装在冻干机内的液压装置或螺杆全加塞。
- To popularize screw pumps, the authors suggest doing further research on the hydraulic single screw pump and the surface equipment.establishing test zones for the applicat... 为推广应用螺杆泵采油，建议继续开展地面机械和液压驱动单螺杆泵采油装置的研究，并建立螺杆泵应用试验区，形成和完善螺杆泵抽汲预测监测系统。
- An exergy method was used to study usage efficiency of single screw compressor's shaft power in the fuel cell vehicle. 摘要运用（火用）方法对车载燃料电池系统单螺杆压缩机压缩过程中的轴功利用效率以及耗散方式进行研究。
- The maleation of ABS by using a single screw extruder and dicumyl peroxide as initiator was studied. 以过氧化二异丙苯为引发剂，采用单螺杆挤出方法实现了ABS树脂接枝马来酸酐。
- Once producing by socker rod pump, the velocity and pressure of liquid are changing with the time in unsteady flow. 在有杆泵抽油生产条件下,流体的速度和压力都随时间变化,处于非稳定流动状态。
- The single screw extruder is an important component in extrusion of polyolefin production. 单螺杆挤出机是一个重要的组成在挤压聚烯烃生产。
- This article recommends the process of direct quenching after carburizing for sucker rod pump liners. 介绍了抽油泵衬套渗碳后直接淬火处理工艺。
- We supply any types of air-cooling and water-cooling single screw air compressor, gratulate to choose and buy! 我们供应各种型号的风冷式、水冷式单螺杆压缩机，欢迎客户选购！
- The processing equipments of FEP masterbatch are single screw extruder and double screw extruder. FEP色母粒的加工设备有单螺杆挤出机和双螺杆挤出机两种。
- The corrosion and wear of rod pump well cause the damage of downhole equipment and seriously affect the normal production of oil well. 有杆泵井中的腐蚀和磨损，造成油井的井下设备损坏，严重影响油井的正常生产。
- PP and PA6 were blended and extruded with a single screw extruder, PA6 could fibrillated in the matrix. 以聚丙烯为基体、尼龙6为分散相共混得到分散相成纤的原位复合材料。
- The structure and the performance of the single screw extruder of electromagnetism dynamic are presented. 简要介绍了电磁动态单螺杆挤出机的结构性能,分析了螺杆在振动力场作用下的轴向受力状况。
- Bolts of a clutch screw press (CSP) boar weight of screw rod and slide of the CSP, balance the down-pushing force of return cylinder and balance strong impact load during the braking of the slide. 某离合器式螺旋压力机的预紧联接螺栓，承受着螺杆和滑块重量、平衡回程缸下推力以及滑块回程制动期间较强的冲击力。
- When using the mechanical recovery method with sucker rod pump in directional and horizontal wells,it needed install to centralizer on sucker rod string. 在定向井、水平井中使用有杆泵机械采油方法时,需要在抽油杆柱上安装扶正器。
- The mixing facilities have experienced the following steps: Roll mixer,Banbury mixer,Single screw extruder,Twin screw extruder and Twin rotor continuous mixer. 混炼设备的发展经历了下列几个主要阶段:开炼机、密炼机、单(双)螺杆挤出机和双转子连续混炼机。
