分圆

Based on wave propagation feature, this paper analyses 3D seismic migration algorithms such as alternating direction implicit method, LU decomposition method, and inverse operator approach method. The result shows that the alternating direction implicit method is fast but causes distortion in wave field extrapolation and affects image accuracy; however LU decomposition and inverse operator approach methods are fast while holding circular symmetry of wave field, and are promising in oilfield exploration and development.

在波的传播特征分析基础上，对交替方向隐式法、LU分解法、逆算子逼近法等三维地震偏移算法进行了分析研究，结果表明，交替方向隐式法虽然快捷但是在波场外推中明显产生畸变并影响成像的准确性，而LU分解和逆算子逼近法是保持波场圆对称特征前提下的快速算法，在油田勘探开发中具有较好的应用前景。

Lifting stroke of 110mm, blade thickness of 10mm or more, suitable for corrugated boxes round knives, woodworking create trigger blade, basket, cloth cutting and other types of blade angle.

升降最大行程为110mm，刀片厚度10mm以上，适用于瓦楞箱圆刀、木工创板机刀片，纸篓、布类分切等各角度的刀片。

The light distributions in an erythrocyte with the shape of native biconcave,oblate spheroid,or disk sphere under the irradiation of a plane light of 632.8nm were studied with a numerical calculation method of finite difference time domain.

我们用有限时域差分的数值计算方法来研究用632.8nm平面光波照射双凹型，扁球体型或圆盘球体型红细胞后在红细胞内部产生的光分布。

As for the changes and transformations to control the enemy: Intermixed and turbulent, their fighting appeared chaotic, but their method was not disordered. In a nice flow of movement, from their deployment of circular transformation from square formation, their formation are not dispersed. This is what is meant by 'when they dispersed and become eight, reunite and again become one'.

等到分合变化打击敌人的时候，则旌旗纷纷，人马纭纭，战斗似乱而阵法不乱，部队行动，有如奔流，由方阵变为圆阵，而阵势仍然不散；这就是所谓分散开就成为八小阵，合起来就成为一大阵的说法。

In this paper we define the concept of Projective Blaschke manifolds and extend the theory of equiaffine differential geometry to the projective Blaschke manifolds. We prved that if M be a complete projective Blaschke n-sphere and its universal covering manifold is isometric to a complete (n+1) dimensional parabolic, elliptic or hyperbolic affine hypersphere, then M is a quotient space of E^n, S^n or D^n by a isometric subgroup of its corresponding spaces.

在这篇文章中我们定义了射影Blaschke流形的概念，将等仿射微分几何的理论推广到了射影Blaschke流形，并证明：如果n维完备射影Blaschke 超球面 M 的通用覆盖流形分别是完备的抛物型、椭圆型或双曲型仿射球，则M分别是n维欧氏空间、n维超球面或n维单位圆盘关于各自空间的一个等距离散子群的商，从而对完备射影Blaschke 超球面进行了分类。

Special 1c green 3rd issue cip postal card, space of inner frame is 116mm, space between top of the postage design and bottom line of upper frame is 2.5mm, uprated with 1c amp;2c cips, tied by chungking of szechwan lunar dater, chungking small cds alongside, with shanghai transit cds and shanghai german po in china cds, very rare for this particular card used in the 1st year of issuance, vf-f rmb:

1907年重庆寄德国清三次邮资明信片，为清三次片特殊版式，内框距为116mm，邮资图上端与上框下线距离为2.5mm，加贴蟠龙邮票1分、2分各一枚，销"四川重庆丁未九月三十日"干支戳，旁盖重庆11月5日小圆戳，有上海11月18日中转戳及上海德国客邮局11月18日戳，清三次片特殊版极少见，而首年使用更少见，是清代邮政用品邮集上乘素材，上中品

Nanjing Lishui Meng wins Daomo Limited of the introduction of high-tech equipment and professional production machinery blades, mold equipment and hardware tools of medium-sized enterprises, is a professional team, the factory has more than 2,000 square meters of factory buildings , Scientific research, development, manufacture and sale in one, with the increasing market demand, our business has been a corresponding expansion of our products according to national standards and standards of production enterprises, strictly in accordance with the ISO9001 quality management system requirements , Complete the processing equipment, a reasonable manufacturing process, improve the detection means strong design capability, to provide high-quality products, the company specializing in the production of various models bending machines, Flap machine, mold and Chongjian, etc. Specifications of plastic spiral Qieli Ji hob, cutting plate machine blade, on paper at the next round Paper knife, the shape of the cardboard boxes with knives, knife type roll, spiral knives, steel rolling knife, thrown knives, plastic models with blades, Cardboard slotted knife-cutter, repair knife edge, high-alloy.

南京溧水猛胜刀模有限公司系引进高新设备与专业生产机械刀片、模具及五金工具设备的中型企业，是一个有专业人员组成的团队，工厂拥有2000多平米的厂房，集科研，开发，制造销售于一体，随着市场需求的不断增加，我们的业务也得到了相应的扩展，我们的产品均按国标及企业标准组织生产，严格按照ISO9001质量体系要求进行管理，齐全的加工设备，合理的制造工艺，完善的检测手段较强的设计能力，为客户提供高质量的产品，本公司专业生产各型号折弯机，折边机，冲剪机等模具及各种规格塑料螺旋切粒机滚刀，剪板机刀片，切纸分纸上下圆刀，各形号纸箱用刀具，横切辊刀，螺旋刀，轧钢刀，甩刀，各型号塑料用刀片，纸板开槽刀，分切刀，修边刀，高合金。

Microscopic examination showed the conidiophores were fasciculate and brown, and that the basal cell was enlarged and hemispheric. Well-developed conidia were long-obclavate, obtuse at both ends, with five to eight transverse septa, which indicated that the pathogen was Bipolaris setaria.

形态观察结果表明，该病原菌分生孢子梗丛生，褐色，基细胞膨大呈半球形，成熟的分生孢子长椭圆形，两端钝圆，具5～8个隔膜，表明其为狗尾草离孺孢。

Solves the equation using finite difference method.Obtains the heat transfer characteristic of laminar flowed ice slurry in circular pipes with constant heat flux.

运用有限差分的方法，对所得的差分方程组进行求解，从而得到定热流状态下圆管内层流冰浆流体的传热特性。

Round wheel with air, or an aging hose皮碗bad wheel or front wheel brake drum of a missing side of a round, tire pressure before the two are inconsistent, a friction-chip front-side oil, wet, hardening, exposed rivets.

轮分泵有空气，软管老化或分泵皮碗不良或前轮某侧制动鼓失圆，两前轮胎气压不一致，某侧前轮磨擦片油污、水湿、硬化、铆钉外露。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。