单作用

In terms of the transmission shaft balancing, it exists another problem that the shaft is not looked at as rigid body.When the rotor running at a high-speed ,under the action of unbalance force ,the transmission shaft will bend. It is certainly ideal to balance a transmission shaft as a flexible rotor.However, considering the mass production of automobiles, this method is obviously unpractical. In order to discreasing the flexible deformation, in this theory, the feasibility that double- plane balancing takes method the place of multi-plane balancing on a special place for one segment transmission shaft.

从传动轴平衡的角度来看，传动轴并非刚体，在汽车高速旋转时，由于不平衡力的作用会使传动轴发生挠曲，如果将传动轴作为挠性转子进行平衡当然比较理想，但是不符合汽车大批量生产的实际，为减少挠曲振动，利用挠性转子平衡原理，对于单根传动轴，从特殊位置进行校正，从而以二面平衡代替多面平衡是可行的。

With this model, we achieve insight into the ion momentum distribution under the combined influence of a two-center Coulomb potential and an intense laser field, and our result shows the significant influence of molecular alignment on the ratio between double and single ionization rate.

研究中我们考察了双中心库仑势及外加场共同作用下的离子动量分布，计算结果同样给出了分子取向对双电离和单电离比率的影响。

As shown in Figure 11-10 as a single electronic control Pilot 2 5-pass valve, in the structure belongs to Strut, mainly double-acting cylinder is used to control movement.

如图11-10所示为单电控先导式二位五通换向阀，在结构上属于滑柱式，主要用于控制双作用缸的运动。

From the sea ice motion data extracted from the MODIS and AVHRR images, it is found that the sea ice motion in the Bohai Sea is effected not only by prevailing winds but also by topographic steering, ocean currents and internal ice stresses. The extracted sea ice drift is similar to observed ice drift, and can clearly show the sea ice drift in the Marginal Ice Zone especially. It can compensate for the limitation of the local or single station observation.

利用MODIS和NOAA/AVHRR资料获取的渤海冰速资料的综合分析显示：渤海海冰运动，除受盛行风控制外，还受到复杂的海岸地形、流和冰内应力的共同作用，所得到的大范围海冰运动规律和多年历史观测资料分析结果基本一致，并清楚地显示了冰边缘带海冰运动的特征，弥补了局地、单站海冰观测的局限性。

This gives the conclusions that the period and earthquake response show to be small when base buries have 6 meters in difference under the same earthquake wave. The dual tower with base structure can be simplified as a single tower with a base structure to simplify seismic analysis and calculations with small errors, when stiffness of the basement of the dual tower is larger.

得出了如下结论：同一地震波作用下，在基础埋深相差6m左右时，其周期和地震反应相差较少；一个大底盘上双塔楼建筑当底盘刚度较大时，可以将双塔楼带底盘结构简化为单塔楼带底盘结构进行抗震分析计算，误差较小。

A bstract: Load Identify has always been one of the important aspects in dynamics. This paper gives us a new way to identify one point dynamic load which is act on a sheet. The method is based on the modal theory and Duhamel integral. Result obtained from a simulation indicates that the method is simple and easy to operate especially when it is used to identify transient load.

载荷识别一直是系统动力学研究领域重要的一方面，本文以平面薄板结构为例，基于模态叠加理论，从 Duhamel积分出发，考察无限自由度系统在单点激励动载荷作用下的载荷识别问题，本文提出的方法具有简单、易操作等特点，通过仿真分析，其对于瞬态激励有比较好的识别精度。

McMaster Uniersity, Hamilton, Ontario, Canada; Innous Research Inc, Burlington, Ontario, Canada; Health Utilities Inc, Dundas, Ontario, Canada.

临床试验表明阿达木单抗加氨甲喋呤可安全且显著地改善病人的临床反应，但该方法对HRQoL的作用还没人研究过。

The structure and the performance of the single screw extruder of electromagnetism dynamic are presented.

简要介绍了电磁动态单螺杆挤出机的结构性能，分析了螺杆在振动力场作用下的轴向受力状况。

Comparing with FWM without dressing fields,the strength of the singly-dressing FWM signal is suppressed when the modulation-field is linear or elliptically polarized.

与非缀饰四波混频信号的强度相比，单缀饰光作用下的四波混频信号的强度在偏振调制光为线偏振及椭圆偏振的情况下受到了不同程度的抑制。

Objective To investigate the effects of emodin, astragalus polysaccharides on hepatitis B virus in vitro.

目的 体外观察大黄素、黄芪多糖单用与联合应用抗HBV的作用。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。