查询词典 elevator pump

Fill the role of letter is to pump shell and closed the gap between the shaft from the water pump does not flow outside to not let outside air into the pump.

填料函的作用主要是为了封闭泵壳与泵轴之间的空隙，不让泵内的水流不流到外面来也不让外面的空气进入到泵内。

Fill the role of letter is to pump shell and closed the gap between the shaft, not pump the water does not flow to the outside to not let the outside air into the pump.

填料函的作用主要是为了封闭泵壳与泵轴之间的空隙，不让泵内的水流不流到外面来也不让外面的空气进入到泵内。

This paper introduces the research results of techniques of testing PC pump oil well through one-year efforts. Which covers the mathematical models of a number of force characteristics strength analysis, and resonance critical problems of rotation rod-string in PC pump wells: resulting of testing method of polish-rod load and rotation rate on the basis of feasible demonstration and technical requirement analysis; study and manufacture of system of testing PC pump well, which involves sensor, collector ring, acquisition circuit and computer; research and determination of assistant technology of testing force on rotation polish-rod and formulation of testing force on polish-rod. A spot testing has been carried out by means of the above research fruit and good results have been achieved.The success testing results in has laid a strong foundation for the oil well diagnosis.

本论文介绍了对螺杆泵采油井的研究成果，其内容包括，对螺杆泵采油井中的旋转杆柱的若干受力特征、强度分析方法及共振临界问题进行数学建模；在可行性论证和技术需求分析的基础上，研究产生了对油井进行光杆负载和旋转速度测试的办法；研究制作了螺杆泵采油井测试系统，它包括传感器、集流环、采集电路和计算机等；研究确定了对实施旋转光杆测力的辅助工艺；制定了对光杆受力进行测试作法，利用以上研究成果实施了现场测试，并取得了理想的结果。

In your reviewing the technical value of the quadruplex pump please consider that this unit is equipped with four pulsation dampeners on the discharge side allowing the pump to achieve a uniformity at least comparable with that of a triplex pump.

当考虑四泵头的泵的技术价值时，请注重到这一装置在出口侧装有四个脉冲缓冲器，这就可以使泵达到平稳的操作，至少是可以同三泵头的泵相比。

Utilizing low cost P-sub N-well process and compound device, we propose a novel high power efficiency all-PMOS charge pump which has the advantages of four phase Dickson charge pump and Doubler charge pump.

最后，基于廉价的P衬N阱CMOS工艺，综合四相位Dickson电荷泵和Doubler电荷泵的优点，采用复合开关管技术，提出了一种新颖的、高效率全PMOS电荷泵升压电路。

Current-limiting valve is mainly used for multi-pump units in parallel with changes in the way the number of traffic conditioning system, installed in the pump exports, from restrictions on water pump flow, stable head.

限流止回阀主要用于多泵并联采用改变台数的方式进行流量调节的系统中，安装在水泵的出口，起限制水泵流量，稳定扬程。

Can be seen, no overload is the essence of the centrifugal pump, pump shaft power curve peak, or shaft power with the increase of flow rate changes are small, relatively flat power curve that axis, so that the pump shaft power in the dead lift off to zero head (that is, from zero flow to maximum flow rate) are less than equal to the original context of the supporting motive power.

可见，无过载离心泵的实质是指，泵的轴功率曲线有峰值或轴功率随流量的增加而有较小的变化，即轴功率曲线比较平坦，使泵的轴功率在关死扬程到零扬程范围内都小于等于原动机的配套功率。

Through in the practice feeling about divulgement, vibration and synthesis operational performance of the pump and life of the key components and the pedestal and intact operating horary inside contact in whole set, try to look for one kind of reasonable and economical corrosion resisting stainless steel material of the pedestal and pump body,in the hope prolonging ZA200-315A and HC200-250A type stainless steels acid resisting pump whole set operation life.

通过实践摸索泵的泄漏、振动及泵综合使用性能和关键部件的寿命、底座寿命与整机完好运行时间的内在联系，试图寻找一种合理经济的耐腐蚀不锈钢底座及泵身材质，以期延长ZA200—315A型及HC200—250A型不锈钢耐酸泵的整机运行寿命。

Grease pump, oil pump, air operated greaser, air operated oil dispenser, grease gun, hand operatal grease/oil pump, waste oil drainer.

8D11 气动黄油泵，气动稀油泵，气动黄油加注机，气动润滑油加注套件，高压黄油枪，手动黄油机／齿轮油加注机，废油抽取机。

For those slurry pump with expeller seal combined with packing or packing seal, the shaft together with impeller should be able to be rotated along pump rotation direction by hand. Otherwise the impeller clearance should be adjusted (For those slurry pump with mechanical seal, adjust the impeller gap first, then mechanical seal).

对于填料加付叶轮组合式密封或填料密封式渣浆泵，用手按泵转动方向转动轴，轴应能带动叶轮转动，不应有摩擦，否则应调整叶轮间隙(对于机械密封式渣浆泵，应先调整叶轮间隙，再调整机械密封)。

He became prime minister in 1997 and won international acclaim for his role in the Northern Ireland peace process.

他在1997年成为总理，并且因为在北爱尔兰的和平进程中发挥的作用受到国际社会的赞许。

Mixed Page Sorting Method Using the cuttable user model, this thesis proposes a mixed page sorting method by using cutted user model in server-side and complete user model in client-side.

隐私分级利用的混合式页面排序方法针对个性化搜索中搜索结果排序的问题，本文利用隐私可控开放的用户偏好模型，提出一个在客户端和服务器端分步进行的隐私分级利用的混合式页面排序方法。