查询词典 pumping-back method

In this article, a new multigrid method for solving p-Laplacian equations is proposed based on the existing multigrid method: FAS multigrid method and Cascade multigrid method. This method is a combination of Cascade method and a new method named "back" method.

本文主要研究现有的几种求解p-Laplace方程的多重网格方法：FAS多重网格方法和Cascade多重网格法，并在此基础上提出了一种新的求解p-Laplace方程的多重网格方法：Cascade-back方法。

Through an analysis of aquifer deformation machanism caused by groundwater pumping ,the seepage flow equation with considering adynamic unit is deduced in this paper,and the mathematical model for the effect of aquifer deformation caused by groundwater pumping upon seepage field is presented.

通过分析抽水引起含水层变形机理，推导出了考虑单元体位移的渗流方程，提出了抽水引起含水层变形对渗流场影响的数学模型。

Laser theory ; Laser Pumping ; pumping source ; Atomic energy level ; Density matrix

激光理论；激光抽运；抽运源；原了能级；密度矩阵

Based on the analyses of the co-relationship between additional requirements of bilge pumping arrangements and requirements of subdivision and damage stability for passenger ship s,the authors found the irrationality of bilge pump number being as the margin for additional requirements of bilge pumping arrangements and proposed amendments to the new regulation 35-1 on bilge pump.

简要介绍了修改后的SOLAS第Ⅱ-1章第35-1条有关舱底排水设备的修改内容；通过对客船舱底排水设备附加要求与分舱、破损稳性要求之间相关性的分析，认为以舱底泵特征数作为设置舱底排水设备附加要求的临界条件是不合理的，从而对该部分内容提出了修改建议。

The birefraction filter is also designed to get satisfying output-parameters. At last, the Ti:sapphire laser with flat-flat resonant cavity is pumped with the pumping source at 532nm. The pumping source is got from the frequency doubling of Nd:YAG laser.

对调谐元双折射滤光片进行了设计，采用厚度比为1：2：10的三片组合型双折射滤光片，最薄晶片厚度d 1 = 0.45mm，光轴与滤光片法线方向呈90度角，以使系统的输出参数达到预期的要求。

Such analysis shows that:(1) Some OH masers are confirmed of their radiative pumping mechanism while some other OH masers might be pumped by other mechanisms, and for another set of OH masers whose radiative pumping lines which is expected by our estimation based on modeling work are not detected, which may be due to other reasons such as clumpy OH shell and limb filling emission effect.

这些分析结果显示：(1)除了一些OH／IR源的OH 1612MHz脉泽可能确实是由红外辐射抽运的外，另有一些OH／IR源可能是由其它抽运机制抽运的，还有一些OH／IR源，可能是由于诸如OH脉泽壳层分布不均匀或OH脉泽壳层填充发射等原因，其光谱中的这两条红外吸收线按照模型估计本应该被探测到而实际上却没有探测到。

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。

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。