下盘

By considering torque characteristics of variable-frequency motors and mesh stiffness as well as backlash nonlinearity in gear transmission,a dynamics model for the cutting system of shield tunneling machine with redundant drives was established. The fluctuation characteristics of torque loads and dynamic cutterhead driving torque in composite strata were analyzed.

复合地层掘进扭矩载荷突变是造成盾构机掘进过程中堵转停机的直接原因，考虑盾构机刀盘驱动变频调速电机特性、转矩传递过程中齿轮啮合刚度及齿侧间隙等非线性因素，建立冗余驱动的盾构机刀盘切削系统机电耦合动力学模型；针对典型复合地层地质条件，对盾构机在上软下硬地层掘进过程中刀盘驱动转矩动态特性进行仿真分析。

Based on the mechanical analysis of rotary pan, the axisymmetrical model and non-axisymmetrical one were proposed respectively by simplifying the effect of lacing wires on pan into ring distribution uniform load or force and were solved according to the flexure theory of thin plate with small deflection.

在分析工作状态下转子圆盘受力的基础上，将拉筋对圆盘的作用分别简化成环形均布载荷和集中载荷，建立承压圆盘的轴对称模型和非轴对称模型，并根据薄板的小挠度弯曲理论，对力学模型进行求解。

The histopathological findings of the partial ADD included the loss of chon- drocyte, horizontal splitting of the condylar cartilage and synovitis at early stage, and the hyperplasia of chondrocyte, the disarrangement of collagen fibers at late stage, but the articular surface remained intact.

完全性关节盘前移位和关节盘穿孔的组织病理研究发现，髁状突软骨变薄，部分区域软骨丧失，软骨细胞增生成族，肉芽组织形成，软骨及软骨下骨出现水平及垂直裂隙，软骨下骨纤维形成，甚至出现囊肿。

Based on Collins integral formula and the expansion of the hard aperture function into a finite sum of complex Gaussian functions,the approximate analytical expression of the diffraction field of Gaussian beam by a circular disc is derived,and its characteristics are analyzed by the numerical calculation and numerical simulation.

基于圆孔光阑函数展开为复高斯函数和的方法，用Colins积分公式，导出了高斯光束照射下圆盘衍射的光场近似解析表达式，经计算机数值计算，对高斯光束照射下圆盘衍射的衍射特性进行了详细的分析

The deformation and failure model of tunnel induced by ground fissure is tensile failure, and tunnel cracks mainly appear in the footwall of ground fissure, but tunnel located in the hanging wall is basically good, which is just adverse to that the damage of buildings or structures on the ground surface caused by the ground fissure mainly in the hanging wall.

地裂缝作用下隧道变形破坏模式为拉张破坏，且隧道衬砌开裂主要出现在下盘距地裂缝14.0 m范围内，而位于上盘的隧道衬砌基本完好，这与地裂缝活动引起土体和地表建筑物的变形破坏主要发生在上盘刚好相反。

Second, by analyzing the strain of northsouth blocks of the fault, we find an asymmetric displacement distribution between the two sides of the rupture, and the two blocks are subject to compressional and tensional stress respectively. It is a pattern that cannot be explained with the linear elastic theory. However, laboratory experiments and in situ measurements in boreholes have shown that many crustal rocks exhibit a nonlinear elastic behavior in compression and tension with a dependence of the Young's modulus on the minimum principal stress. So we suggest that the nonlinear displacement distribution should be considered when dislocation and hypocentral parameters are analyzed.

进而通过对地震南北盘同震应变的分析，发现了昆仑山地震的南北两盘分别受挤压和拉张两种应力作用，研究表明多种岩石在拉张和压力作用下其最小主应力下的杨氏模量表现出非线性弹性特征，从而提出对昆仑山地震地表位移及震源特征参数分析时应考虑非线弹性介质导致的非线性弹性位移分布特征。

P moves you up to the parent directory and the button with the dash maintains a list of recently used paths. On Windows operating systems, the button also contains a list of all drives (C:, D:, etc).

左上角有个按钮，用它可以移动到上一级目录，它下面的按钮则记录了最近访问过的目录，如果是在Windows系统下，这个按钮还包含了所有的盘符，比如C盘、D盘等等。

After added 6 mosaic seedlings in a tray, clipped once, the average incidence of mosaic could reach to 13.0%~18.3%, about 65%~80% symptomless seedlings became mosaic after transplanted 15 d.

苗盘试验表明，每剪1盘苗后用漂白粉消毒剪刀1次的情况下，在每盘苗加入6株TMV病苗，剪刀剪叶1次，剪叶后第10d平均发病率为13.0%~18.3%，发病株数增加3.5~4.9倍，无症烟苗移栽后15d，花叶病发病率可达65%~80%。

S. trifoliorum is similar in biology and morphology to S. sclerotiorum , but S. minor produces much smaller sclerotia and generally produces apothecia less frequently in nature.

三叶草核盘菌在生物学和形态学上比核盘菌要小，小菌核产生的菌核非常小并且在自然状况下一般很少产生子蘘盘。

In the morning market, Shanghai stock index opened high with 14 points. Since media gave prediction of falling, significant differences between rising-oriented and falling-oriented have emerged. Strong cashing came as soon as the index upsurged. I don't criticize falling-oriented analysts, instead, we should stick to our own market operation plans. As yesterday's comments by me, the 288 Cycle Line at 3221 points in the morning market would lie in short-term strong supporting position.

早盘，上证股指高开14点，由于媒体上所谓利空的传言及宣传，造成多空双方分歧很大，股指一冲高就出现强力套现潮，我不想批评那些一直唱空的人，我们还是坚持自己的操盘计划，昨天晚上的饿文章已经提示了，位于早盘3221点的288周期线是短期强支撑位，在坚持&三三制进仓法&的原则下，我们等到股指回落到288周期线附近可以满仓操作，在市场处于极度恐慌时，就是我们满仓杀入的机会。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。