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This paper uses the ADAMS software to set up a dynamic model of tractor-trailer combination consisting of one tractor and five trailers with a total of 13DOF. The effects of drawbar length, articulation joint position on path following performance are investigated using parameter analysis method.

本文应用机械系统分析软件ADAMS建立了由一节牵引车和五节双轴转向拖车组成的汽车列车系统13个自由度的动力学模型，采用模型参数化分析方法，讨论了牵引杆长度、主车与拖车和拖车与拖车的铰接点位置对主车与拖车轨迹同辙性的影响。

For Dryden power spectral density function, using the rational spectral theory to set up the linear state-space model.

针对Dryden频谱函数，通过有理谱成形理论，建立了阵风的线性化模型。

Secondly, we choose the proportion of shares held by institutions as dependent variable, and we use log of the total asset, volatility, beta, Jensen Index, debt-to-asset ratio, dividend yield, turnover ratio, years listed in exchange and HS300 Index dummy as explanatory variables. Then we set up a multiple regression model. Finally, we use the cross-sectional data from the end of 2006 to the end of 2007Q3 to test the relationship between the explanatory variables and the proportion held by institutions.

具体方法如下：首先，在已有研究成果的基础上，对我国机构投资者的审慎性持股偏好提出了两个假设；其次，以机构持股占个股流通盘的比例为因变量，以公司的总资产对数值、波动率、贝塔值、Jensen指标、资产负债率、股息率、年度换手率、上市年限为解释变量，并在引入沪深300虚拟变量后，建立了多元线性回归模型；最后，采用我国证券市场迎来历史性大牛市、机构投资者发展最为迅猛的2006年末-2007年3季末的四个横截面数据，对各解释变量与机构持股比例之间的关系进行了实证检验。

In the tenth century St. Dunstan set himself to reform the English monastic houses on the model of Fleury and of what he had seen successfully carried out at Ghent during his exile in Flanders.

在10世纪圣邓斯坦为自己确定的改革英语寺院的房屋模型的弗勒里和他所看到成功地进行了在比利时根特在他流亡在佛兰德斯。

DO you how to set the duplicator in the reducing/amplify model?

你知道怎么将复印机设定在缩印模式上吗？

On the basis of component models, the dynamic simulation model of system has been set up.

对仿真算法进行了研究，实现了快速有效的动态仿真为系统的优化设计提供了可能性。

Based on the cloud model and the fuzzy set theory, a new edge detection method was proposed.

基于云模型和模糊集理论，提出了一种新的边缘检测方法。

The Tin Drum by Gü nter Grass is noted for its expression of a grave and realistic theme in easiness and eeriness, which set a magnificent model for the writing of contemporary novels.

德国作家君特·拉斯的小说《铁皮鼓》以其在轻松和怪诞之中表达严肃的现实性主题而受到广泛的推崇，历经数十载而不衰，为当代的长篇小说创作树立了光辉的典范。

The model of FEM for electric field is set up and analyzed.

同时，利用ANSYS 对传感器电容的电场情况进行了仿真分析。

In this article, according to the structure of Armature which is the core part of an Electrodynamic Vibration Shaker, a three-degree equivalent dynamic model is set up and then the quick calculating formula of the first-order axial harmonic frequency of Armature is educed.

针对电动振动台的核心部件——动圈，根据动圈的结构，建立了动圈的三自由度等效动力学模型，导出了动圈轴向一阶共振点的快算公式。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。