The set takes Roots pump as its main pump and spinning vacuum pump as pre-stage pump.
本机组采用罗茨泵作为主泵，以旋片式真空泵作为前级泵。
The stability problems for serial operation of large, multi-stage pump stations is discussed in view …
结合山西万家寨引黄工程，从电气设计角度，探讨了大型多级泵站串联运行稳定性问题。
Click here to learn more about Diaphragm Pump, Magnetic Pump, Sewage Pump, Multi-stage Pump, or Self-priming Pump.
了解更多隔膜泵，磁力泵，排污泵，多级泵，自吸泵，螺杆泵，离心泵，油泵产品。
High flow midship pump. Up to 2250 GPM. The best selling single stage pump. Midship Split Drive Line Manifolded pump.
高流量中置泵，最大流量达2250GPM。是最畅销的单级泵。复合以中置分离传动轴承泵。
The stability problems for serial operation of large, multi-stage pump stations is discussed in view of the electric design point on Shan…
结合山西万家寨引黄工程，从电气设计角度，探讨了大型多级泵站串联运行稳定性问题。
In between, an electromagnetic vacuum inflation valve is installed in series, which opens and closes with the switch of the pre-stage pump.
在前级泵与主泵中间串联一个电磁真空充气阀，随前级泵开关而启闭。
"We've [also] got an indication that we can pump protons across the membrane" to set up a proton gradient, says Cronin - another key stage in harnessing energy from light.
克罗宁称，我们可以抽吸质子分布在细胞膜上，来设置形成一个质子坡度。
Mechanical seal: this type is especially suitable for multi-stage slurry pump in series and without leakage.
机械密封：该形式的密封特别适用于多级串联渣浆泵的密封，完全无泄漏。
The whole test stand is mainly made of pump stage part, intake part, discharge part and data acquisition part.
整个试验台架由泵级部分、吸入部分、排出部分和数据采集部分组成。
The pump has a two-stage, end suction, horizontally mounted back pull-out design for hot, abrasive and corrosive liquids.
该泵为两级、轴向吸入，卧式安装的后拉式泵，适用于热的、磨蚀的和腐蚀的介质。
This pump is activated by a high level control and pumps excess flow directly into the first stage of media.
该泵需要高级控制，可以将多余的水量直接输送到盘片的第一个阶段。
In the stage of thermal production, rod pump is used.
热采阶段采用有杆泵生产。
Single-stage single-suction centrifugal pump is designed in compliance with performance and size prescribed in the international standards ISO2858.
单级单吸离心泵是根据国际标准ISO2858所规定的性能和尺寸设计的。
To study the application and effect of clinical pathway(CP)for patients in early ICU stage after the operation of Off-pump Coronary Artery Bypass Grafting(OPCAB).
目的探讨非体外循环冠脉搭桥术病人术后监护阶段临床路径的应用及其效果。
Single suction, single stage horizontal centrifugal pump with closed impeller.
单吸、单级卧式离心泵，用封闭叶轮。
But there are some shortage of ordinary single-stage heat pump in low-temperature environment, such as high compression ratio, devoid heating power and low efficiency.
但普通单级空气源热泵热水器在低温环境下运行中存在压缩比过大、制热量不足和制热效率太低等问题。
The numerical analysis of a whole flow field for a single stage tangent pump was presented.
对单级切线泵在设计工况进行了定常流动数值模拟，分析了叶轮流道及蜗壳内的液体流动情况。
However, our research on the ground-source heat pump system is still in the initial stage, and not yet mature design and operation of the lessons learned.
但是，我国在地源热泵的深入研究方面还处于起步阶段，尚没有成熟的设计与运行的经验总结。
Presents the two-stage heat pump test-bed designed by the authors, analyses the problem existed in experiment and offers the improving method.
介绍了自行设计的双级热泵实验系统，分析了实验中遇到的问题，提出了改进方案。
Because of the characteristic of the system, we choose Songbin Resort as object to study the double-stage heat pump system.
并以吉林市松滨度假村为研究对象，建立了该双级热泵系统的系统组成。
Sanitary pump is single stage, single suction, full closed stainless steel centrifugal pump or pneumatic diaphragm valve.
进口卫生泵的型为单级、单吸、全封闭不锈钢离心泵或者气动隔膜阀。
Multi-stage centrifugal pump is mainly used for high head applications environment, use deep, high-rise residential water supply, fire water supply.
多级离心泵主要用于高扬程的应用环境，应用于深井、高层住宅的供水、消防供水等。
This pump is of horizontal single stage and single suction type with radial split, axial suction and radial discharge. It is fully enclosed and leakage free.
该型泵为单级、单吸、卧式、径向剖分，轴向吸入、径向排出。全密封，无泄漏。
It is comprised of multiple stage centrifugal pump, double stage gas separator, protector, submersible motor, guard shield and setting gas separator.
它主要由多级离心泵、双级分离器、保护器、潜油电机、护罩、沉降分离器组成。
A two-stage compression variable frequency air source heat pump (TV-ASHP) has been developed combining variable frequency technology with two-stage compression cycle.
将双级压缩和变频技术有机结合，提出一种适用于寒冷地区双级压缩变频空气源热泵系统。
We have stud - ied heat supply system seriously, and use a new kind of plan named heat pump of steam supply system instead of the three - stage steam supply.
对纸机供热系统进行了研究，采用一种新型的供汽系统- - -热泵供汽系统，取代了传统三段供汽。
The reactor coolant pump is vertical, single stage, centrifugal pump to pump large volumes of reactor coolant at high temperature and pressure.
主泵为立式，单级离心泵，大流量，能承受高温、高压。
Two-stage heat pump system is an important research direction which can acquire high temperature working fluid.
双级热泵系统是获得高温工质的一个重要研究方向。
With comprehensive analysis, two-stage compression cycle is applied to air-source heat pump to adapt to the low-temperature environment.
本文通过综合分析，选择将两级节流中间不完全冷却双级压缩循环应用于空气源热泵热水器以适用低温工况。
Sewage slurry pump is single stage single suction vertical centrifugal pump, the main components are volute, impeller, pump base, pump casing, support tube, motor base, motor and other components.
浑水泥浆泵是单级单吸立式离心泵，主要螺杆泵部件有蜗壳、叶轮、泵座、泵壳、支撑筒、电机座、电动机等组成。
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