The shaft seal is a part that can be damaged more easily in pump.
一般来说，釉封是泵结构中最易受损的部位。
In the case gas is present, velocity of pressure drop in pump increases.
在有气体存在的情况下，泵内压力下降速度加快。
Both methods demonstrate some delay lag occurring in pump valve movement.
这两类方法得到的结果均说明泵阀运动存在滞后现象。
It can provide the theory and way for engineering plastics that used in pump.
此结果为水泵用工程塑料的选择提供了理论依据和方法。
The length of these phases is often measured in pump strokes rather than volume directly or time.
这些阶段的长度一般用泵冲测量而不是直接用体积或时间来测量。
Open caisson is a special construction measure used in pump room and big diameter well constructing.
沉井是修建泵房和大口井等构筑物的特殊施工方法。
Most of main pump in pump stations driven by variable speed motor for long distance transport petroleum engineering.
在长距离输油（气）管道工程中，大部分泵站内的主泵采用调速电机驱动。
It is also discussed that the limitation method used in pump control system can be used in the valve control system.
最后，讨论了怎样把泵控制系统限位的一些方法扩充应用到阀控制系统中去。
The basic principle of frequency and constant voltage water supply is discussed, as well as its application in pump station.
初步讨论变频恒压供水的基本原理及其在泵站中的应用。
Magnetic fluid seal is wildly used in pump, valve and kettle of the petroleum and chemical industry because of its low wear and long life.
磁流体密封技术具有无磨损、使用寿命长及适用于静动密封的特点，正被广泛应用于石油化工的泵、阀、釜及压缩机等领域。
Still, all signs suggest that the troubled economy will continue to dwarf the fall in pump prices as hard-pressed consumers continue to cut back.
然而眼下所有迹象都表明，由于手头拮据的消费者纷纷捂紧口袋，汽油价格下跌在不景气的经济面前将继续扮演微不足道的作用。
The premise that the angular velocity of liquid in pump chamber is equal to the half of angular velocity of the impeller has not been verified yet.
泵腔内液体旋转角速度等于叶轮旋转角速度的一半，这一假设有待于进一步验证。
It has no compressor, need not freon, rely on the built-in pump let water in the machines, and will continuously circulation around the air cooling.
它没有压缩机，不用氟利昂，靠内置的水泵让水在机内不断循环，并将周围的空气冷却。
Least square method of polynomial or the method based on the given function are used to fit pump characteristic curve in pump selection or operation.
在水泵的选型或运行中，通常采用多项式的最小二乘法或根据假设的函数关系来拟合水泵性能曲线。
The top plug has a solid body that provides positive indication of contact with the landing collar and bottom plug through an increase in pump pressure.
顶塞具有一个实心的塞体，根据泵压的增加它能可靠地显示与止塞箍和底塞的接触。
Problems in pump stations of circulating sewage of the Hot Rolled Plate Plant of Panzhihua Iron & Steel Co. are analyzed and the countermeasures are given.
对攀钢热轧板厂浊环泵站运行中存在的问题进行分析并提出解决问题的对策。
In the numerical simulation, the effects of fifth-order nonlinearity in pump probe process are studied for different pump intensities and spatial positions.
在数值模拟中，研究了在不同抽运强度和位置下的抽运探测过程中的五阶非线性效应。
In the process conditions permit, the change in pump flow, head, speed and medium operating temperature operating parameters, to avoid the occurrence of cavitation.
在工艺条件允许的情况下，改变泵的流量、扬程、转速及介质的操作温度等操作参数，可以避免汽蚀的发生。
Its application to fault diagnosis and state monitoring for a pump system shows that the hybrid neural network may recognize the fault modes in pump units reliably.
在泵系统故障诊断与监测中的应用表明，混合型神经网络能可靠地进行水泵机组故障模式的识别。
Sulzer Pumps combines more than 145 years of experience in pump development and manufacturing with a deep commitment to fully understanding the needs of our customers.
苏尔寿泵业有超过145年的泵研发制造经验，能够充分理解客户地需求，有着极高的信誉。
As an important complement and consummation of the pump CAD system, the SPCAD software system fills up the gap of the pump shaft intensity calibration in pump CAD system.
SPCAD系统作为泵cad系统的一个重要补充和完善，填补了泵cad系统中泵轴强度校核CAD应用的空白。
A systematic analysis is made of the causes for the frequent damage of dry-gas seals, axle vibration and gradual decrease in pump delivery encountered during the test run.
对试车中遇到的干气密封频繁损坏、轴振动、泵输出量逐渐下降等原因进行了系统分析。
Pipe friction is the resistance to flow caused by the pipe. As a general principle, it is better to use the largest practical pipe size to avoid losses in pump performance.
管道摩擦力是指由管道引起的流动阻力，作为一个常用原则，最好是使用最大的实用的管道尺寸以避免在水泵性能方面的损失。
The pre-loading process and silencing grooves were used on port plate in order to avoid the phenomenon of pressure pulsations, which are the main factors of flow ripple in pump.
子母叶片泵是广泛使用的高压泵，为了消除配流时的油击现象，在配流盘上设置了预升压闭死角及减振阻尼，这二者是影响泵的瞬时流量均匀性的主要因素。
The most efficient work point of of the pump device was deduced after the analysis of the relationships between hydropower loss and hydropower efficiency in pump and pump device.
本文分析了泵及泵装置的水力损失和水力效率的关系，推求出了泵装置的最高效率工况点。
By use of rate equations, we have analyzed the effect ot laser wavelength radiation in pump light source on excited state population accumulation of laser medium and laser threshold.
本文用速率方程分析了泵浦光源中激光波长辐射对激光介质激发态粒子数积累和激光器阀值的影响情况。
Long service life of diesel engines in pump station determines the availability and maintainability of the engine, the pipeline safe operation as well as the realization of oil transport targets.
输油泵站柴油机组使用寿命的长短，不但影响着机组的利用率和维护保养费用，而且影响着管道的安全运行和输送任务的完成。
There was no water in the building, just a pump in the courtyard.
楼里没水，只在院子里有个水泵。
There was no water in the building, just a pump in the courtyard.
楼里没水，只在院子里有个水泵。
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