Field application demonstrates that the management level and economic efficiency of the screw pump production system would be improved by using the control chart.
现场应用表明，根据螺杆泵油井工况宏观控制图，可提高螺杆泵采油系统管理水平及经济效益。
The regularity can be applied to optimize the design of screw pumps and improve its working efficiency.
利用此规律可对螺杆泵进行优化设计，提高其工作效率。
Usually, the fullest efficiency of screw propeller is 75% with the rest energy lost in the way of whirlpool.
通常螺旋推进器最大效率为75％，其余的能量以漩涡的形式损失。
Application of the model results show that the effectiveness and accuracy of other oil fields to enhance the efficiency of screw pump well system has a certain significance.
应用结果表明了该模型的有效性和准确性，对提高其他油田螺杆泵井系统效率具有一定的指导意义。
The ordinary screw jack depending on the thread self-locking action support heavy item, the structure is simple, but the transmission efficiency is low, the return trip is slow.
普通螺旋千斤顶靠螺纹自锁作用支持重物，构造简单，但传动效率低，返程慢。
The world manufacturing screw air compressor manufacturers, also can use the so-called third generation of high efficiency of the type line.
世界上制造螺杆空压机的厂商，也都能使用所谓的第三代高效率的型线。
Since conventional screw classifiers have a lower efficiency, it is difficult for them to control their product sizes, affecting directly ball mill's throughput capacity and final separation results.
由于传统螺旋分级机的分级效率较低，分级产品的粒度难以控制，从而直接影响球磨机的处理量和最终的选别指标。
Simple in structure, small in volume, light in weight, little in energy loss, screw pump oil system could decrease oil cost, improve efficiency, and be of widely prospect.
螺杆泵采油系统结构简单、体积小、重量轻、耗能小，使用螺杆泵采油可降低采油成本，提高采油效益，具有广泛的发展前景。
Screw whirling milling is one of the screw manufacturing processes with high production efficiency.
旋片铣削螺纹是一种生产效率较高的螺纹加工方法。
Screw compression refrigeration unit is one kind of large scale compression refrigerator with characteristics of big refrigeration capacity, small floor area and high efficiency.
螺杆压缩制冷机是一种制冷能力大、占地面积小、效率高的大型制冷机。
The traditional food swell extruding screw machining method can not be satisfying because of its machining quality and efficiency.
传统的膨化挤出螺杆加工方法，其加工质量、加工效率等均不能令人满意。
Against the screw on the different Wells specific measures to improve system efficiency, making Erlian screw oil Wells on the management level to a higher level.
针对该情况对不同的螺杆泵井提出了具体提高系统效率的措施，使得二连油田螺杆泵井的管理水平上了一个台阶。
Screw whirling milling is one of the screw manufacturing processes with high production efficiency. In this paper the whirling milling principle and cutter design are described.
旋片铣削螺纹是一种生产效率较高的螺纹加工方法。介绍了旋片铣削工作原理及其铣刀设计。
Screw pump features are: smooth flow, small pressure fluctuation, imbibition, low noise, high efficiency, long service life and reliable operation.
螺杆泵特点是：流量平稳，压力脉动小，能够自吸，噪声低，效率高，使用寿命长，工作可靠。
In order to increase production efficiency of PDA cases output on plastic jetting-moulding machine, the auto-loading screw device of robot is developed.
为了提高用注塑机生产掌上电脑外壳的生产效率，研制了机械手自动加螺丝装置。
A new type screw stem welder with capacitance stored energy welding, being high efficiency and used to the production for the pipe with stems outside is introduced.
介绍了为适应钉头管生产而开发研制的新型高效电容储能螺柱焊机。
Screw type rotors have high volume efficiency.
螺杆转子具有较高的工作效率。
The assembled screw optimized by the melt filled length could improve the efficiency of twin screw extruder, and provided reference for the design of screw of ICTSEG.
利用熔体充满长度来优化螺杆组合，以提高挤出机生产效率，为啮合同向双螺杆挤压造粒机的螺杆设计提供参考。
The machining practice shows that the approach enhances the efficiency and precision for the machining of screw flutes with surfaces of revolution.
实际加工结果表明，该方法提高了回转曲面螺旋槽加工精度和效率。
In order to ensure the efficiency and service life of screw drilling tools, an inverse inspection method for screw drilling tools driven by hydraulic motor is investigated.
为了确保螺杆钻具的效率和使用寿命，研究了采用液马达驱动的螺杆钻具逆向检测试验法。
According to the energy loss of every part of screw pump well, established system efficiency analysis model for the well.
根据螺杆泵井各个部分运动特点及能量损失情况，建立了螺杆泵井系统效率分析模型。
Hence by using the efficiency equations, derived in this paper, the optimum speed ratio to get higher efficiency of the screw pairs can readily be selected.
然后用本文推导的效率公式选用合理的丝杠螺母角速比，便可得到较高的效率。
CURTIS rs Series Screw air compressors are manufactured to ISO 9001:2000 standards for dependable and energy efficiency, providing years of reliable service.
CURTIS公司的RS系列的螺杆式空气压缩机，根据ISO 9001： 2000标准生产，产品高效可值得信赖，常年提供可靠性服务。
The production line adopts high efficiency extruder, swift net changer and screw plastic blowing head.
生产线采用高效挤出机，快速换网，螺旋吹塑机头。
To settle the problem, a novel energy-saving motor used in screw pump was designed, and this motor could make efficiency of screw pump oil system improved and variable speed device decreasing.
为此，本文设计了螺杆泵用新型多星形移相变极电机，使得螺杆泵采油系统工作效率进一步提高，同时可以减少了变速装置。
Screw pump Wells in accordance with the characteristics of the various parts of movement and energy losses, the establishment of a screw pump system efficiency analysis model well.
按照螺杆泵井各个部门运动独特之处及能量丧失环境，建立了螺杆泵井系统效率分析模子。
By comparison, the TATSR has higher efficiency of pumping. plasticization and mixing than that of twin screw reactor.
与双螺杆反应器相比，三螺杆反应器具有较强的物料输送能力、塑化和混合能力；
In a decanter centrifuge, the screw conveyor is the key component whose structure, materials and parameters determine the throughput, separation efficiency and working life of the centrifuge.
螺旋输送器是卧螺离心机的主要部件，其结构、材料和参数不仅关系到离心机的生产能力和分离效果，而且还决定了卧螺离心机的使用寿命。
The disk type automatic screw locking mechanism has the advantages of good accuracy, high stability, fast speed, high production efficiency and low labor intensity.
本实用新型具有准确性好、稳定性高、速度快、生产效率高，劳动强度低等优点。
The disk type automatic screw locking mechanism has the advantages of good accuracy, high stability, fast speed, high production efficiency and low labor intensity.
本实用新型具有准确性好、稳定性高、速度快、生产效率高，劳动强度低等优点。
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