几个

Chapter 8: We discuss the acceleration of multigrid by Krylov subspace approaches, and recognize the reason for slow convergence of algebraic multigrid methods is that error reduction is significantly less efficient for some very specific error components which may cause a few eigenvalues of the algebraic multigrid iteration matrix to be considerably closer to 1 than all the rest. However, the eigenvectors belonging to the few isolated eigenvalues can be expected to be typically captured after only a few conjugate gradient iterations, which accelerate algebraic multigrid algorithms. Theoretical analysis and numerical results of some practical problems show the iterant recombination accelerates algebraic multigrid convergence.

第八章：先介绍用Krylov子空间迭代法加速一般多重网格方法收敛的基本框架，然后紧紧抓住引起代数多重网格方法收敛减慢的根本原因往往是误差减小对几个特别的误差分量不明显，这导致代数多重网格方法的迭代矩阵的几个特征值接近于1，而共轭梯度方法则能比较典型地捕捉属于孤立特征值的特征向量，从而推导出有效的共轭梯度加速算法和程序实现，不仅从一些具体的实际应用例子的数值结果去验证迭代复合加速收敛的效果，而且还从理论上分析了预处理共轭梯度法加速代数多重网格法收敛的机理。

I am a stationmaster, also be each laic, I put the ad of the mom in a few A in my website, had received penny a few times, what to receive even unexpectedly so called technology serves cost, thinking originally is small alliance of big company unlike should deduct tax, deduct remittance cost, did not think of to do each technology to serve cost unexpectedly, have originality very much.

我是个站长，也是各俗人，我在我的一个网站放了几个阿里妈妈的广告，收过几次小钱，居然还要收什么所谓的技术服务费，本来以为是大公司不像小联盟要扣税，扣汇款费，没想到居然搞出来各技术服务费，很有创意。

Lepidophloides and lepidodendralean leaf cushion genera, such as Lepidodendron, Lepidophloios, Sigillaria and Cathaysiodendron revealed that L. lepidophloides possesses mixed features of all these genera and it can not be assigned into any of them without doubt.

将鳞皮鳞木与已知几个鳞木类植物叶座属，如鳞木属、鳞皮木属、封印木属和华夏木属进行了对比，认为鳞皮鳞木具有这几个属的混合特征，将其归入上述任何一属似乎都不太妥当。

Currently, AAGI' s main projects include Daning Area, Mabi Area and Panzhuang Area etc, which is around 2000 square kilometers.

公司目前开发的煤层气项目涉及大宁，马必和潘庄等几个地区，这几个区块的面积达2000平方公里左右。

Currently, AAGI' s main projects include Daning Area, Mabi Area and Panzhuang Area etc, which is around 2000 square kilometers.

公司目前开发的煤层气项目涉及大宁，马必和潘庄等几个地区，这几个区块的面积近2000平方公里。

Then detailedly introduces the principle of pole-changing modulating speed and design feature in times pole proportion and non times pole proportion in the Mixed pole-changing simplex winding multispeed asynchronous motor , carry on discuss to the main parts of electrical machinery electromagnetism computation; by using VISUAL BASIC under WINDOWS platform for computer-aided design method for the mixed pole-changing simplex winding multispeed asynchronous machine, carries on profound analysis for the computer-aided design in the following aspect such as rotor and setting flush piece size, groove shape size, the rotor and setting winding connection, and start performance.

本文在介绍了单绕组多速电动机的概况，阐述了目前多速电机的发展现状与前景；利用槽号相位图以及混相原理对变极绕组进行了研究，确定了绕组的混相方案；并详细地介绍了混相变极单绕组多速电机在倍极比与非倍极比时的变极调速原理以及设计特点；对电机电磁计算的主要几个部分进行了讨论；介绍了使用WINDOWS平台下的VISUAL BASIC对混相变极单绕组多速异步电机的计算机辅助设计方法，对混相变极单绕组多速异步电机的定转子冲片尺寸、槽形尺寸、定转子绕组接法、定转子相带、起动性能的几个方面的计算机辅助计算进行了深刻分析；最后，对混相变极单绕组多速异步电机的样机检测试验结果进行了分析。

The first author to cite names (including different original spellings of the same name) or nomenclatural acts published on the same date and to select one of them to have precedence over the other.

第一位在后来引用同一日期所发表的几个名称(包括同一名称的几个不同原拼法)或命名举动，并且选定其一赋予较其他名称优先地位的著者。

The first few jokes intrigued us indeed, but the later ones palled on us.

开头的几个笑话的确引起了我们的兴趣，可是后来的几个就不再吸引我们了。

At the release conference has also exposed the news brief -like pieceflower, divides into the Gansu version Hengdian version and so onseveral parts, also has the performance war the panoram also to haveto guns down nearly acts the leading role from the capture as well asseveral makes a movie the mirror to be prime, initially has presented"the trade" which two brave said and "the humanities concern".

发布会上还曝光了花絮式的片花，分成甘肃版横店版等几个部分，既有表现战争的全景也有对枪杀的近距离捕捉以及几个主演的拍戏镜头等，初步呈现了二勇所说的&商业性&和&人文关怀&。

There is something indescribable there which exhales grace, a green meadow traversed by tightly stretched lines, from which flutter rags drying in the wind, and an old market-gardener's house, built in the time of Louis XIII., with its great roof oddly pierced with dormer windows, dilapidated palisades, a little water amid poplar-trees, women, voices, laughter; on the horizon the Pantheon, the pole of the Deaf-Mutes, the Val-de-Grace, black, quat, fantastic, amusing, magnificent, and in the background, the severe square crests of the towers of Notre Dame.

那地方散发着一种无以名之的淡远的情趣，一片青草地，上面有几根拉紧的绳索，迎风晾着一些旧衣破布，蔬菜地边有所路易十三时代的古老庄屋，庞大的屋顶上开着光怪陆离的顶楼窗，倾斜破烂的木栅栏，白杨树丛中有个小池塘，几个妇女，笑声，谈话声，朝远处看，能望见先贤祠、盲哑院的树、军医学院，黑黝黝，矮墩墩，怪模怪样，有趣，美不胜收，在更远处，有圣母院钟塔的严峻的方顶。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。