查询词典 pumping-back method

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。

Optical pumping makes atom system be partial polarization but magnetic resonance produces depolarization, which is the basic process for investigation of the responsibility to optical pumping for Rb isotope.

光抽运使原子系统偏极化而磁共振则产生退极化，这一过程是研究Rb同位素光抽运响应的基础。

And it puts out the way to solve the present problem in unwatering by punching and blasting , and pumping water by intercepting ditch and dipping plash and infiltration well to solve the problems in pumping in the mining pit during rainy season in the strip mine.

文中论述了霍林河煤田南露天矿目前的疏干状况和存在的问题，并针对存在的问题，提出了用穿孔爆破的方法解决煤层弱含水层的疏干问题。

The 35,000-foot, 144-inch internal diameter pipeline will use gravity to convey at least 320 mgd of flow from an existing combined sewer overflow structure near the city's Belmont Advanced Wastewater Treatment plant and two large diversion structures connecting to existing city interceptor sewers, along with the connection of a future 150 mgd pumping station from the City's future planned deep tunnel combined sewer overflow collection and storage system, to the pumping station at the Southport AWT plant.

三万五千呎，144英寸内部口径管道将利用重力传递至少320催化裂化MGD流量从现有合流溢流结构附近城市的belmont先进的废水处理植物和两个大型引水结构，以连接现有的城市截流污水随着连接未来催化裂化MGD150个抽水站，从城市的未来规划深的地下隧道，合流溢流收集和储存系统，抽水站southport页面厂。

It is also shown that under the same conditions, the values of the LWI gain with incoherent pumping are evidently larger than those without incoherent pumping exceptΦ=0 and the time reaching the steady state is shorter; varying the initial condition doesn't change the stationary value of the LWI gain but can remarkably affect the transient evolution process of the LWI gain.

研究还表明，与不存在非相干泵浦时相比，除了相对位相Φ=0的情况外当存在非相干泵浦时系统可得到大得多的稳态增益，而达到稳态所需的演化时间也短得多；初始条件的变化不改变稳态增益的大小但对瞬态演化过程有明显的影响。

Don not attempt to do something which you can not to do.

不要企图做那些办不到的事情。

The expression of CTGF and TNF-αweredetected by immunochemistry and the number of Clara Cells was calculated.

光镜下观察肺组织的病理变化，采用免疫组化染色观察肺组织中结缔组织生长因子和肿瘤坏死因子-α的表达和Clara细胞的数量。