查询词典 jockey pump

First super-low specific-speed centrifugal pump has a long and narrow flow passage for its high head and low capacity, and the power absorbed by disc friction is too high, so the efficiency is very low; Secondly the diffusion of flow passage is so high, that the reserved flow often emerges at the inlet and outlet of impeller. Therefore the H ~ Q characteristic curve is often hump-shaped, and at the low-capacity operating condition the instability often occurs; Thirdly the centrifugal pump at high-capacity operating condition is easy to overload because the N ~ Q curve appears a rising trend.

首先由于它的扬程较高、流量较小，所以它的流道狭长，圆盘摩擦损失较大，效率相对较低；其次由于它的流道扩散较严重，易在叶片进口产生回流和在出口产生脱流，扬程流量特性曲线易出现驼峰，在小流量工况下易产生不稳定现象；第三，由于其功率流量曲线呈现上升趋势，在大流量区运行时电机易过载。

This gives a detailed description of the electronically controlled motor vehicle diesel engine widely used in-line pumps, rotor pump plunger distribution, the distribution of home plunger pumps, high pressure common rail pump nozzle and the five types of fuel oil supply system and diesel engine intake, exhaust system The structure principle.

本书详尽地介绍了电控汽车柴油发动机上普遍应用的直列泵、转子柱塞分配泵、对置柱塞分配泵、泵喷嘴以及高压共轨五大类燃油供给系统和柴油发动机进、排气系统的结构原理。

My company has ball inflator pump products, automotive-type pump, design elegant, beautiful, durable and lightweight, easy to operate, red gas saving, easy to carry.

我公司气筒产品有球类气筒、车类气筒，设计精致、美观、轻便耐用、操作简便、冲气省力、携带方便。

The present objective is to evaluate the possibility of installing pump jet on fishing vessels, including simulation of flow field near the pump jet, comparison with traditional propeller on issues of tangling, and life-cycle cost for typical Taiwanese fishing methods.

本研究目标是评估泵喷推进器用於渔船上的可行性，包括泵喷推进器出入口流场模拟、泵喷推进器与传统螺桨绞缠性能的比较、台湾渔船使用情形下成本效益之评估，也针对一般的台湾渔船，进行改用泵喷推进器的初步线型与安装设计并比较其静水性能与稳度影响。

But because some key technologies, such as pipe system with lower loss and no vacuole, pump with high efficiency and big capability, the good combination among ship, equipment and pump, navigation sets with good hydrodynamic performance, have not been settled, the evolution of waterjet is slower.

但是由于一些技术没得到解决，如低损失、无空化进口的管道系统；高效率和大功能转换能力的推进泵；以及船、机、泵的有效配合问题；水动力性能的导航操纵装置等，影响并制约了喷水推进技术的发展。

The company Dongfeng Cummins B, C, L series engine cylinder block, cylinder head, crankshaft, piston, valve, cylinder, pump, air compressor, oil pump, flywheel, pressure plates, clutch nearly a thousand varieties of film, etc..

公司现有东风康明斯B、C、L系列发动机缸体、缸盖、曲轴、活塞、气门、缸套、水泵、空压机、机油泵、增压器、高压油泵、飞轮壳、压盘、离合器片等近千个品种。

As for hydraulic excavator routine three lever power models,pump engine match principles and realization methods are expounded,then the characteristics of load sense system are analyzed,and the conflict between load sense control and pump engine match is clarified.

就液压挖掘机中常见的三档功率模式，详细地阐述了泵与发动机的匹配原理及其实现方法，分析了负荷传感系统的特点，阐明了负荷传感控制与泵、发动机匹配相矛盾的实质，提出了在保留泵与发动机匹配时应舍弃负荷传感控制的论点，对于泵与发动机匹配时的液压回路进行了较深的探讨，提出了由计算机依据泵与发动机匹配的原则，通过主阀自动调节和分配各执行器流量和功率的新的学术思想，推导了相关的公式。

The fuel tank assembly consists of: the fuel tank, fuel pump module assembly, fuel pump module locknut/gasket, and rollover valve (refer to Group 25, Emission Control System for rollover valve information).

油箱组合包含：油箱，油泵模组组件，油泵模组锁定螺帽／垫圈，和逆止阀(请参阅单元25&排放控制系统&来获取逆止阀资讯)。

Experiment results indicate that the magnetic fluid flux has a direct relation with the magnetic field under the effect of traveling wave magnetic field. The bigger the magnetic field is, the more the flux is, when the structure of the magnetic fluid travellig pump and the saturation magnetization of magnetic fluid are constant. The volumes of the magnetic fluid from the travelling wave pump increase from 1.9 ml to 3.1 ml, when the magnetic field intensity increases from 25 900 A/m to 40 000 A/m. In addition, the change rate of the magnetic fluid decreases with the increase of the magnetic field due to the effect of magnetic field on magnetic fluid viscosity. The bigger the saturation magnetization of the magnetic fluid is, the more the flux is.

结果表明，行波磁场作用下的磁性流体流量与磁场的强度有直接关系：在磁性流体行波泵结构和磁性流体饱和磁化强度相同的条件下，磁场强度越强，其流量越大；当磁场强度从25900A/m增加到40000A/m时，单位时间内从行波泵内流出的磁性流体的体积由1.9 ml增加到3.1 ml；随着磁场强度的不断增加，磁性流体流量的变化率由于磁场对其粘度的影响而减小；而磁性流体的饱和磁化强度越大，其流量也越大。

If Puchi Meister BSA 1409D-pump lubrication system, equipped with a 380 V AC power-driven pumps grease, but at the same time there are 24 V power grease pump and hydraulic-driven pumps grease.

如普茨麦斯特BSA 1409D型泵车的润滑系统中，就配备了一个380V交流电源驱动的润滑脂泵，但同时还有24V电源的润滑脂泵和液压驱动的润滑脂泵。

You can snipe the second and third union leaders from this position.

您可以鹬第二和第三工会领袖从这一立场出发。

Aiming at the currently shortage of XML streams quality detecting, this paper proposes a new forecasting method of XML streams quality by least squares support vector machines, which is used the method of XML keys' vector matrix as windows, and vector product wavelet transform to multilevel decompose and refactor the XML streams series, that can fulfill real-time checking demand of XML quality, and ensure constraint, consist- ency and integrality. For even more adapting net load, it proposes a control strategy by weight and adaptive adjustment to ensure XML streams quality.

针对当前XML数据流质量检测存在的不足，提出构建XML键的矢量矩阵作为窗口，利用矢量积小波变换多级分解与重构XML数据流，再结合最小二乘支持向量机对XML数据流质量进行预测的一种方法，满足XML数据流质量重构时实时检测的要求，保证XML数据的约束性、一致性与完整性；为了更好的适应网络负载，采取加权与自适应窗口调整等调度策略充分保证XML数据流的质量检测。