查询词典 jockey pump

Enhancing pump efficiency Pump efficiency refers to the utilization degree of shaft power of prime mover by fluid.

水泵的效率随水泵工作状态点的不同从0至最大效率间变化。

Introduced the proportional variable pump system used in injection molding press and the working principal and structure of proportional variable pump , described the major futures and benefit and the developing prospect of the system.

介绍了比例变量泵系统在注塑机上的应用情况，以及比例变量泵的结构和工作原理，阐述了比例变量泵系统的主要优点和注塑机应用比例变量泵系统的效益与发展前景。

The velocity distributions and the surface pressure distributions of rotor blades and stator blades are acquired, furthermore, the efficiency and the thrust of the pump-jet propulsor are calculated, to lay foundation for the design and the optimization of pump-jet propulsors.

获得了泵喷射推进器转子叶片和定子叶片上的速度分布及其表面压力分布，并由此计算了泵喷射推进器的效率和所产生的推力，为泵喷射推进器的设计及其优化打下了基础。

To understand the flow noise generation mechanism of pump jet propulsor, this paper calculates the flow field of a torpedo pump jet propulsor,analyzes the field structure, and then calculates its broadband noise with Proudman theory.

随着理论计算方法的逐步完善以及计算资源的增强，对流动噪声进行理论数值分析已逐渐可行并成为深入了解声源传播途径、噪声产生机理及噪声声级预报的重要手段之一。

In view of the problems existed in the water pump of mine central pump house,the article designs an automatic system scheme suitable to the application at site,which proves a good result in practical use.

针对矿井中央泵房水泵存在的问题，设计了适合现场的自动化系统方案，经实际使用达到了良好的效果。

The main content included the choice of programme, the design of the speed reducer,the pump body, the connecting rod,and the crossheadthe, as well as the selection of the structural style of the pump.

设计的内容主要有方案的选定，减速器的设计，泵的结构形式的选择，泵体的设计，曲柄连杆机构的设计，┼字头的设计

Pump dynamometer card shape directly reflects the characteristics of different factors that influence the working performance of sucker rod pump performance.

结合实例，对仿真得出的泵功图进行分析，找出了影响泵况的主要因素，通过参数调整，改善了抽油泵性能，提高了油井效率。

The current developments of rod pump test equipment and hydraulic control system is introduced. Several rod pump test equipments are analysesed.

第一章阐述了研究意义以及目前国内外有杆泵测试领域及相似领域的现状，介绍了与液压伺服机系统相关的研究领域的现状。

Second, the flow of centrifugal pump components of the flow of centrifugal pump components are: inhalation room, impeller, the pressure to room in three parts.

二、离心泵的过流部件离心泵的过流部件有：吸入室，叶轮，压出室三个部分。

Compared with the conventional deep well pump, this pump is simple in structure, light and cheap.

同常规深井泵比较，该泵具有较强的耐磨防砂、防卡性能；同常用的防砂卡泵比较，该泵具有结构简单、质量轻、价格低等特点。

Listen,point and check your answers.

听，指出并且检查你的答案。

Warming needle is one of effective treatment methods for knee arthralgia aggravated by cold,and it is simple,safety,so it should be developed in clinical acupuncture and moxibustion extensively.

但以本院科针灸门诊在2005年1月—2006年6月期间共收治膝痛患者100余例，经过临床的诊断后，其中施以温针治疗的48例，疗效显著，报道如下。1临床资料本组病例48