偏心

The bifurcation and chaos behavior of impact and rubbing fault rotor system caused by the parameters of nonlinear rigidity, rotor rotating speed, eccentric mass is analyzed, in the numerical value analysis method. The bifurcation diagrams, maximum Lyapunov exponent diagrams, Poincaré maps, phase plane portraits, trajectories of journal center, time-history curve, amplitude spectra diagrams of the rotor motion are used. The convert and evolution course of periodical response, quasi-periodical response, double-periodical bifurcation, chaos of the system response is analyzed.(3). It is deduced that the general differential equation of bending-torsional-pendular coupling vibration about rotor with the gyroscopic moment. On the basis of this equation, the general differential equations of coupled bending, torsional and pendular nonlinear vibration about rotor with unbalance character and rubbing character are deduced.

2建立了具有非线性刚度的转子系统在非稳态非线性油膜力作用下的径向碰摩动力学微分方程，并应用含高阶余项的非线性动力方程的线性化数值法研究了此类系统响应的复杂动力学行为，利用转子响应的分岔图、最大Lyapunov指数曲线、Poincaré截面映射、时域波形、相轨线、轴心轨迹、幅值谱等图形分析了系统响应的周期运动、拟周期运动、倍周期分岔、混沌等运动形式的转化与演变过程，重点研究了非线性刚度、转子转速、偏心质量等系统参数对碰摩故障转子系统的分岔和混沌行为的影响。

In this paper ,move ment pri nci ple of rocket i n direction pi pe was got by dy— namic si mulation ,and effect characteristic consideri ng contact stiffness ,detent force and nozzle thrust misalignment a— bout pitchi ng angle velocity was analysis .All the study set foundationfor further study of high—lowpressure launch sys— te m.

通 过发射仿真分析，获得了火箭弹在高低压发射系统中的内弹道变化规律，分析了火箭弹与定向器的接触刚度、耳轴扭转刚度、尾喷管推力偏心等因素对俯仰角速度的影响特性，所得结论为火箭武器高低压发射系统的进一步相关研究奠定了基础。

A few of intercellular electron-dense zones without typical synapse were found in the inner plexiform layer.

内核层内可见胞核各异的多种细胞，部分胞核常／异染色质例接近，核仁偏心分布。

Because of the complexity of the analysis and the ponderance damadge afterearthquake,the asymmetric-plan structures are more and more focused by the scholorsin home and abroad.

偏心结构由于其结构受力的复杂性以及震害的严重性，因此越来越受到国内外学者的关注。

Secondly, the mathematical models for VE type three eccentric chaotic exciter and forrame rum oil system of chaotic vibratory roller are built. The numerical simulation and chaos identification are finished under different parameters of the exciter. The relationships between the chaotic characteristics of the exciter as well as the rame rum oil system and the parameters of the exciter are investigated.

其次，建立了& CVE—2型三偏心混沌激振器&和混沌振动压路机&机架—振动轮—土&系统的数学模型，并在激振器的不同参数条件下，对数学模型进行了数值仿真和混沌识别；研究了&混沌激振器&和&机架—振动轮—土&系统的混沌特征与激振器参数之间的关系。

The regurgitant volume was calculated by temporally integrating the instantaneous flow volume rate of each frame during systole.

建立了基于经食道旋转扫描二维和经胸实时三维超声多普勒血流图像获取方法和图像插值、配准算法获得体数据，经多维重建描述二尖瓣反流速度的空间分布，立体观察返流的时相、方向、反流束长度、面积、体积、空间传播和严重程度等；通过重建反流后的速度场，从血流动力学角度分析了二尖瓣反流的性质，计算偏心反流束的湍流强度，利用反流束角度和湍流强度对计算结果进行修正；基于实时三维彩色多普勒成像技术，利用控制体原理对二尖瓣反流束在反流瓣口横断面的速度分布进行空间与时间积分获得二尖瓣偏心性反流的每搏反流量。

Reverso Gyrotourbillon 2 spherical tourbillon on the 2nd of the sapphire crystal in the eccentric pin disc to burn two blue steel pointer instruction time, the left side of face plate for fine carving patterns Gear 24-hour time instructions blue small seconds tourbillon instructions in order to move outside the framework.

反面Gyrotourbillon 2对在偏心销盘蓝宝石水晶第二球形陀飞轮烧两个蓝钢指针指示时间，脸板左侧细雕刻图案齿轮24小时的时间指示蓝色的小秒陀飞轮指示为了移动以外的框架。

The Coulomb rub, eccentricity of the backup rool of non-linear factor that people usually neglect is considered in the mathematical model, that reflecting the project truly and completely.

该数学模型考虑了库仑摩擦、支撑辊偏心等通常被人们忽略的非线性因素，更加真实和全面地反映了工程实际。

On the basis of the working principle of double eccentricity mechanism the movement equation of seaming roller,when the guide rod was on different starting positions,was derived.

依据双偏心机构的工作原理，推导了导向杆在不同起始位时卷封滚轮的运动方程，总结了封罐机构参数的设计思路，为封罐机的设计提供了理论依据。

This paper introduces calculation of bolt connectin supported by eccentric sheal force on the basis of ultimate strength and compares ultimate strength method with elastic method.

介绍了按极限强度法计算承受偏心剪力的普通螺栓连接计算方法，通过算例比较了按极限强度法和按目前工程设计中常用的弹性法计算的差别。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷