固有

Due to the complication of the geometric shape and the non-uniform distribution of the mass and stiffness,it is impossible to obtain the exact solution of natural frequencies of low-finned tube s.

针对低翅片管几何形状复杂，质量和刚度分布不均匀，振动特征值不能有封闭解的问题，采用瑞利-里兹法对低翅片管的固有频率进行了数值研究，获得了低翅片管弯曲振动固有频率的数值计算模型。

Results: All rats in experiment group devloped CAG at the end of 12 weeks with the following Pathological changes of CAG such as thin mucosa layer, thick muscle layer, decreased glandes, soakaging inflammation cells in microscope and with the time prolonging, the atrophy of gastric mucosa became more serious; In normal control group and normal feeding group, the IL-6 and IL-8 content in blood serum are the same at every time point; In experiment group, IL-6 became increased from 4wk and kept high level from 4wk to l2wk and had significant difference compared with normal controls.

结果：灌胃至12wk时出现胃粘膜层变薄，固有层腺体减少，固有层纤维结缔组织增生，粘膜肌层明显增生，慢性炎细胞浸润等萎缩性胃炎表现，随著热盐水灌胃时间的延长，32wk胃粘膜萎缩程度明显加重；正常对照组和正常餵养组大鼠各时间点血清IL-6，IL-8含量基本相同。

It is pointed out that beacuse the first natural frequency is much smaller than the second one, it bears the primary function in vehicle guideway interaction.

分析指出轨道系统的第一固有频率远小于第二固有频率，在车轨耦合振动中起主要作用。

The main research contents are stated asfollow: 1. Simplified analysis method of space grids structuresDouble-layer space grids have been assumed as sandwich plate, and are analyzed bythe nontraditional theory of plate with consideration of shear deformation and threegeneralized displacements. Using the theory of energy variation, simplified methodsfor bending, stability and vibration analysis of double-layer space grids have been putforward based upon the idea of split rigidity. The formulas for calculating internalforces, displacements, critical load and natural frequency have been given out. Set thestable cables and bearing cables in hyperbolic paraboloid cable nets are all replaced bytruss-cable to form truss-cable nets structures. Natural vibration analysis method fortruss-cable nets structures has been put forward using the energy variation method andRayleigh method.

主要内容包括： 1、空间网格结构静动力简化分析方法把网架结构简化为夹层板，采用考虑剪切变形的具有三个广义位移的平板弯曲理论进行分析，基于分解刚度思想利用能量变分原理提出了网架结构弯曲、稳定与振动分析的简化计算方法，给出了位移、内力、屈曲临界荷载和固有频率的计算公式；将双曲抛物面索网中的稳定索与承重索均用劲性索代替形成劲性索网结构，基于能量变分法和Rayleigh法给出了劲性索网结构固有振动分析的简化计算公式。

The sensitivity characteristics of the natural vibration frequencies and mode shapes of vibration structures with respect to mass and stiffness modifications are analysed based on the matrix perturbation method of the linear generalized eigenvalue problem.

基于线性广义特征值问题的矩阵摄动重分析公式，较为系统地分析了振动系统各阶固有振频及固有振型随结构质量和刚度的修改的灵敏度特性，得出了一系列具有重要实用意义的结论，指出了对结构进行摄动修改的最灵敏位置。

The effects of meshing phase on natural frequency and vibration mode of planetary gears were analyzed.

对行星齿轮传动的固有特性进行了研究，分析了啮合相位差对行星齿轮传动的固有频率和振动模态的影响。

So the natural frequency in still water can be used in the case of moving water.

因此，可以用结构在静水中的固有频率近似结构在动水中的固有频率。

It is more nearly adequate to say that vulgarized Nietzschean thought activated latent problems, and accelerated indigenous trends, already present in American life.

比较恰当地说，被庸俗化的尼采思想只是引发了美国人生活中固有的潜在问题，并加速了其固有倾向。

When Horace Walpole in his "Preface to the Second Edition" of The Castle of Otranto claimed that his unprecedented literary attempt had been to "blend the two kinds of romance, the ancient and the modern," he was conscious of an anomaly with the results of this experimentation: i.e., although the settings and incidents in his narrative would be as quixotic and "unrealistic" as in the "ancient" courtly romance, the characters were supposed to be portrayed according to "realistic" conventions of the newly rising novel, reacting to these fantastic scenarios in such psychologically convincing manners as ordinary people would have done under the same situations.

中文摘要当瓦普在其小说《奥川多城堡》的第二版序言中声称他史无前例的文学创作是尝试要「结合两种传奇故事：固有与现代」时，他已然意识到这种实验所带来的突兀结果；换言之，虽然在叙事中的场景与事件如同「固有」浪漫传奇般天马行空且「不写实」，其中角色却又必须根据新兴小说的「写实」成规加以铺陈，对於身处的奇幻场景的反应必须如一般人面对同样情况时一样，在描绘上得令人信服。

By the finite element method model, Natural frequency and vibration model of some project fin-stabilitde sabot-discarded penetrator during launching are calculated and analyzed.

利用建立的三维有限元模型，计算分析了30阶尾翼稳定脱壳穿甲弹的振动固有特性，得到了各阶振动的固有频率及响应振型。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。