查询词典 pumping engine

The structure and technical principals of arc rolling beam balance technology are introduced in this paper.Through reforming the pumping unit beam,the counter weight structure of beam is improved and the pumping unit is easily balanced.

摘要介绍了弧线滚动平衡游梁结构及技术原理，通过对抽油机游梁进行简单改造，使游梁的配重结构得到了优化，使抽油机更易达到平衡。

Through the theoretical calculation and the comparison of the compound crown wheel energy saving pumping unit with the conventional one, it can be found that the new pumping unit has obvious energy-saving effect.

通过理论计算和对复合天轮式节能抽油机与常规机性能对比可以看出，本机具有显著的节电效果。

Due to the transmission angle of the flexible rod deviates from 90°less than others, the pumping unit overcome the "dead angle restricted"problem of the conversional pumping unit and fixed four rods structure.

由于连杆为柔性杆，其传动角偏离90°较小，克服了常规机和固定四杆机构的"死角制约"问题，游梁摆角比常规机可加大30—50%。

It consists of the main pumping system, pumping divertor and glow discharge cleaning system.

它由真空主抽气系统、抽气偏滤器、直流辉光放电清洗系统组成。

In the theory part, based on the rate-equation theory of four-level system, the expressions of output power and slope efficiency under the conditions of near-threshold and deeply pumping have been given. The effects of space distribution variables(the position of focusing point, dimension of pumping light and laser light and ellipticity)on the output characteristics were also discussed.

在理论部分，首先从四能级系统的理论出发，得到了近阈值条件和强泵浦条件下的输出功率和斜效率的表达式，并详细讨论了泵光聚焦位置，泵浦光和振荡光的光斑大小、椭圆度等空间变量对输出特性的影响。

A new energy-saving hydraulic pumping unit was designed, which had compound Cylinder-accumulator system, it can use the gravitational potential energy of the pumping unit.

研究出一种节能型液压抽油机，该液压抽油机采用复合缸--蓄能器液压系统，可以回收利用下行程时抽油杆释放出来的重力势能，具有显著的节能效果。

The connector of all kinds of wire ropes has simple structure and reliable performance, especially the multi wheels movable pulley and new structure pulley block provide the condition for oil pumping machine saving energy, and saving energy above 50% as well as decreasing the cost of the oil pumping machine above 50%.

各种钢丝绳连接器结构简单、性能可靠。尤其是多轮动滑轮、新结构滑轮组，为抽油机节能提供了条件，可节能50％以上，降低抽油机造价50％以上。

This invention provides new-type movable pulley oil pumping machine, wheel axle bidirectional oil pumping machine which possesses the function of energy saving and efficiency increasing.

本发明提供了新式动滑轮抽油机、轮轴抽油机、双向抽油机，具有节能增效的作用。

So the study of moveable pumping station is of actual significance.Exploration of moveable pumping station involves many aspects of technology.

因此，展开移动泵站的研究工作是势在必行的课题，具奋重大的理论和实际意义。

It is important for safety and high efficiency of pumping station operation to study hydraulic stability of large scale pumping station.

大型泵站的水力稳定性研究对保证泵站的安全、高效运行具有重要意义，随着南水北调跨流域调水工程建设和全国大中型泵站改造的实施。

"The operators will suffer a temporary decrease in the number of consumers and short message services as people may not like having to provide their ID cards for a phone number," Xu Junqi, vice-dean with the Policy-Making Institute of the Telecommunications Research Centre under MII, said yesterday.

信息产业部下属的通信决策研究院副主任徐俊其昨天说：&实行手机实名制后，人们可能不太情愿用身份证注册手机号，所以通信运营商会暂时面临用户减少和短信用户减少的问题。&

I don't believe in make-believe!

我不相信这些虚构的故事。