查询词典 pumping-back method

This method is good in water-filled first full advantage of the power machine, and the other is to improve the efficiency of the pumping station.

这种充水方法的好处一是充分利用了动力机，二是提高了泵站的效率。

In order to lengthen the transport distance, the traditional method is to add a middle relay pumping station, but its investment cost is large, and the adjustment is inconvenient.

为延长输运距离，传统的方法是采用中间接力泵站，但其投资费用大，而且调整不方便。

On the basis of the method of separating variables of sucker rod wave equation,in combination the matrix recursion technology with trigonometric series recursion technology,a kind of quick arithmetic of pump dynamograph in failure diagnosis technology of sucker rod pumping system is proposed.

在抽油杆柱波动方程分离变量法的基础上，将矩阵递推技术与三角级数递推技术相结合，提出了有杆抽油系统故障诊断技术中计算泵功图的一种快速算法，这种方法不仅适用于单级抽油杆采油系统，同时也适用于不同材质、不同杆径抽油杆组成的抽油系统。

The research result shows that the un-pumping tunneling method is the most effective one,this...

结果表明，非降水施工法是控制地层固结沉降最有效的施工方法。

In this paper, method of calculation for pumping of water vapour with gas ballast pump is introduced.

本文介绍用气镇泵抽除水蒸汽的计算方法。

A hematophagous candiru's usual method is to parasitize a larger catfish, infiltrating the host's gill slits, grasping onto the flesh inside, rupturing blood vessels, pumping out the blood with its highly mobile jaws and then darting out again.

吸血寄生鲶常用的方法是寄生在较大的鲶鱼身上，穿透寄主的鳃孔，紧扣内部肌肉，造成血管破裂，以高度灵活的嘴巴吸血，然后冲出去。

The method of determination of hydrographical and geological parameters in water bearing layer of site by pumping test adopted for car dumper shed of Phase One Project of Huanghua Port was introduced in the paper.

介绍黄骅港一期工程翻车机房采用抽水试验确定场地含水层水文地质参数的方法，并对地基处理所造成的影响进行了初步探

Having studied the relation of oil well paraffine precipitation and the rod load, the paper finds one new method to predict the oil paraffine precipitation ---statistics comparison of the indicator diagram, and calculates the paraffin removal cycle as well as the paraffin removal time And predicts the oil well paraffin precipitation; Combined with the test data of oil field and the basic production parameter of the oil well system, the paper has carried on close analysis of the efficiency of the single well system, and obtained each target reflecting the system operation; the efficiency of the oil pumping mechanical well system has been improved and the submersion pressure mathematical model has been completed, and the author draws up the dynamic control chart of sub-area system efficiency, thus raises the management level in the oil well system efficiency.

通过研究油井结蜡速度与抽油机悬点载荷的关系，将油井结蜡与示功图结合到一起，找到一种对油井结蜡预测的新方法——示功图统计对比法，计算出清蜡周期与清蜡时间，预防了油井蜡卡；以现场示功图为依据，结合生产参数对抽油机井系统效率进行实测分析，完善系统效率与沉没压力的数学模型并绘制油井系统效率动态控制图，对系统效率进行了检测评价与优化。

With the development of underground structures in Shanghai, the ground freezing method is more and more widely used in tunnel construction (such as the soil reinforcement of the passway and pumping house of tunnels).

冻结法施工在上海隧道建设中（如隧道旁通道、地下泵房等的设计与施工）得到广泛应用，也曾引发过严重的地质灾害（如上海地铁4号线外滩段的地质灾害）。

Chapter 3 introduces the research situation of measuring method on the pumpage of concrete pump and the mathematic expression is established according to the structure parameters and working principle. The key factors of real time pumping efficiency are described.

第三章讨论了混凝土泵排量测量方法，根据混凝土泵泵的结构参数和工作原理建立了测量混凝土泵排量的数学表达式，阐述了混凝土泵实时泵送效率的关键因素。

For the head-teacher of the class said that I had seriously broken the school rules,which led me to a three-day suspend class.

为什么呢？因为我的班主任说我严重的违反了校规，于是让我停课三天。

Many of them believe that the conversion of thousands of working-class folk in England spared that nation from the mass carnage and the tyranny that came with the revolution in France.

他们之中有许多人相信，在英国数以千计的劳工阶级之悔改信主使英国免於遭受如法国大革命所造成的大屠杀和专制暴政。