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After comprehensive analysis, we can conclude that the given design method of trapeziform labyrinth screw pump is practical and design parameters are reasonable. The educed result has the directive significance for engineering practice of this kind of pump.

综合分析后发现，本文针对梯形迷宫螺旋泵给出的设计方法切实可行，设计参数合理，对实际生产有指导意义。

Differential pressure compensating pump is a new one that can generate underbalance low pulse, it is also called underbalance pulse deep oil well pump.

压差补偿泵是一种能产生负压低脉冲的新型结构的抽油泵，又名负压脉冲深井采油泵。

Metering rooms in Daqing oilfield adopt microcom puter to meter and LQR-50 type gas meter and float ball joint control pipeline pump. In operation, oil en tering gas meter or float ball malfunction to make pump unstarting or ceaseless frequently.

大庆油田计量间采用微机控制计量，选用的LRQ-50型气表和浮球接点控制管道系在运行时，经常发性气表进油以及浮球失灵造成泵不启动或启不停等现象。

This pump is a new stainless stee multiusage vacuumpump with water circulation.it has big power,and multipe air exhaustor.and fixed,inside and ontside water circulation,can be with five tap for suction direct display at the same time,the pump has the advantages of unuse oil,non-pollution,big power,lower noise,easy movement, save water and electricity one machine with multi-usage.

该泵是大功率多头抽气的一种新型不锈钢循环水式多用真空泵，本机设计内外循环水，可以五头同时抽气，具有不用油、无污染、功率大、噪音低、方便灵活，节水省电等优点，一机多用。

VMP metering pump from a set of FMI and a cascade from the second step into the motor, FMI is a now widely recognized precision stepper motor driven valveless metering pump.

VMP的电压差计量从FMI系列设置和级联泵从电机到第二步，FMI系列产品是现在人们普遍认识精密步进电机驱动无阀计量泵。

The auther adopted virginly the technique of the 3DPIV at home, and acquired the reliable measurement data, which assumes the important realistic signification for revealing the essence of the flowing in the pump sump, verifying the mathematical model of the CFD computation and boundary conditions, and optimizing the hydraulic design of the pump sump.

这对有效地揭示进水池内部流动的本质、校正CFD计算的数学模型及边界条件、优化进水池的水力设计，具有重要的现实意义。

The paper analyzes the performance, structure, operating life of the WARMAN pump comparing with 12PN slurry pump, and compares withthe usage effect and economic efficiency between the two pumps.

就瓦尔曼泵的性能、结构、使用寿命与12PN泥浆泵进行对比分析，并对两种泵的使用效果与经济效益进行比较，阐述了瓦尔曼泵的优越性。

For propelling the slurry of low density (below 30% in weight) and low anti-corrosion it is an ideal energy-saving product to replace the WARMAN double-suction pump in L and SH double-suction clear water pump series.

输送低浓度(体积浓度20%以下)，低磨蚀渣浆时是替代L系列WARMAN泵和SH型双吸清水泵的理想节能换代产品。

For propelling the slurry of low density (below 30% in weight) and low anti-corrosion it is an ideal energy-saving product to replace the WARMAN double-suction pump in L and SH double-suction clear water pump series. In comparison

输送低浓度（体积浓度20%以下）、低磨蚀渣浆时是替代L系列WARMAN泵和SH型双吸清水泵的理想节能换代产品。

The direct reverse circulaeion tor dyeing is executed by change ralve inside the pump .The impeller inside the pump can provide large flow and enough head coelicient for yarm dyeing procredure.Due to its strong penetrbility,it is suitable for very difficrlt texture and various kinds of textures.The dyed textrue is with high color fastness and good uniform dyeing effects.

其染液正反循环通过泵内的换向阀自动完成，泵内叶轮能为染纱过程提供大流量和足够扬程系数，其穿透性强，适染高难织物，被染织物色牢度高，具有很好的匀染效果，适染多种织物。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。