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Base on that, the paper introduced a new type principium of oil drain pump, and expounded the specialty of the oil drain pump and processed analysis and calculations corresponding to its working.

在此基础上介绍了一种新型机构原理的排油泵，阐述了该类排油泵的特点，并对其工作情况进行了相应的分析和计算。

There is no heat generated from the valve of the fixed pump, and no DRAIN from the variable pump. Thus

没有固定泵泄压阀的发热量，没有可变泵的DRAIN，抑制了油温的上升，使冷却水使用量减少80

This ejector was mainly used in solar desalination system to pump the non-condensing gas and keep an appropriate vacuum. At the same time, it could also be used to pump and drain the brine water to avoid briny crystallization.

其主要应用于太阳能海水淡化装置，用来抽吸系统中的不凝气体，以保持系统适当的真空度；同时抽吸排放浓海水，避免海水结晶。

Screw vacuum pump under the water pump drain plug, filling water or arguments pulp.

拧下真空泵泵体的引水螺塞，灌注引水或引浆。

Through the retrofit for multi-frequency regulation, shaft seal ing water system,rotator material and shaft cover orientation mode of 150 NW-78×2 low pressureheater drain pump,pump corrosion at low-load operation,bad packing seal,bearing vibration,bearing burned have been solved.

通过对150 NW 78×2型低压加热器疏水泵进行变频调节改造，对轴端密封水系统、转子部件材质和轴套锁母定位形式进行了改进，消除了给水溶氧超标、轴承振动超标和轴承烧毁等缺陷，提高了泵组健康运行水平。

Permanent pump is famous large-scale water supply and drainage equipment, chemical pump series of professional manufacturers.

隔膜泵。管道泵永久泵业是国内知名的大型给排水设备，化工泵系列的专业制造商。

In accordance with the characteristics of coal mining main drainage pump and present state of control and measurement technology,this paper introduces a kind of modularized control and measurement system for coal mining main drainage pump .

针对煤矿主排水泵的特点和当前测控技术的发展，介绍了一种模块化的煤矿井下主排水系统计算机监控系统。

It consists of vacuum pumps and other equipment assembled, irrigation and drainage pump stations most often used for water ring vacuum pump.

它由和其他设备组装而成，排灌站经常采用的真空泵大多为 SZB水环式真空泵。

In accordance with the characteristics of main drainage pump for coal mine and the present development of control and measurement technology, the paper introduces a kind of modularized computer monitoring system for main drainage pump underground coal mine.

针对煤矿主排水泵的特点和当前测控技术发展，本文介绍了一种基于模块化的煤矿井下主排水系统计算机监控系统。

Mine drainage pump required, in beneficiation, smelting and rolling process, the need to pump to the water supply first and so on.

矿井需要用泵排水，在选矿、冶炼和轧制过程中，需用泵来供水先等。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。