您要查找的是不是：
- 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
- New method for power saving of beam pumping units. 游梁式抽油机节能新技术探讨。
- The condenser can be substituted by SK series water-ring vacuum pump or ZSWJ series hydropower spray vacuum pump unit if available. 如果采用SK系列水环真空泵或ZSWJ系列水力喷射真空泵机组。可不用冷凝器。
- When repairing the pump unit, install the plug attached to the service part to prevent ink from spilling. 当修理泵部件时,要安装泵的附件，以防止墨水泄漏。
- 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
- Development of the well condition self-adaptive pumping unit. 井况自适应抽油机的研制。
- Central single zone heat pump unit, typically with ductwork. System has indoor fan and cooling coil and remote compressor/condensing unit. 有谁知道以上两种系统有什么区别?能不能举一、两个例子，对于家里房间里用的普通的空调器（带室外机和室内机的那种），是属于哪种系统呢?
- 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
- It deploys in the power of engineering machinery , processing machinery,power sets , agriculture irrigation pump units,automobile,tractor and the harvester. 它配置于工程机械、加工机械、发电机组、农业排灌的水泵机组、汽车、拖拉机和收割机的动力。
- Results are significant to reasonable design and selection of large step pump stations,structures and functions of pump unit equipments. 成果对大型梯级泵站形式和机组设备结构功能的合理设计选型有重大意义。
- In the light of characteristics of south-to-north water transfer project in the east of China, the requirements of step pump stations of the project for pump units are analyzed. 针对南水北调东线工程特点,分析了其梯级泵站对主泵机组的要求。
- Introduce the principle of applying negative pressure sealing &injecting pump unit, as well as the structure to prevent filter from seeping. 介绍一种采用负压密封的原理和射流泵装置,防止过滤器渗漏的结构。
- This paper collected the vibration signal of water pump units by magnetoelectric transducer, and diagnosed the faults by a method using wavelet transform. 采用磁电式速度传感器测定水泵机组的振动信号，并通过小波变换处理进行故障诊断分析。
- The differential equation of pump station start-up transient is established and derived from discharge balance and moment equation of pump unit. 摘要本文从水量平衡及水泵机组力矩方程出发，建立起水泵从起动到同步的微分方程式。
- The outside diameters of electrical submersible pump u-nits are big, structures are complex and the annular clearance between pump units and wellbore is small. 由于电潜泵机组外径大、内部结构复杂,与井筒形成的环空间隙非常小,断裂落井后,很难打捞。
- Imersion oil electric pump unit is a kind of oil jack with rodless deep extraction, large discharge capacity and high lift. 潜油电泵机组是一种无杆深抽、排量大、扬程高的抽油设备。
- The whole system consists of oil tanks, electric motor pump unit, control valve unit, accumulators, manual pump and control instruments. 整套系统由油箱、电机泵组、控制阀组、蓄能器、手动泵和控制仪表等组成。
- 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
- In order to solve the great starting current and occurrence of water hammer in pump unit, the soft starting controller of motor based on PIC microprocessor was proposed. 为解决水泵机组起动电流大和易出现水锤现象的问题,提出一种以PIC单片机为控制核心的电动机软起动控制器。
- Rebar and anchor bolts used in the pump base shall be sufficiently tied to the mounting floor to ensure a rigid, stable mounting surface for the pump unit. 泵基座所采用的钢筋和锚固螺栓应该能够与安装地面结合牢固紧密，确保为泵设备提供坚固可靠的安装基础。
