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This article applies the Newton's second law to establish seven degrees of freedom ride model of automobile vibration on the stochastic road surface. The computer program for simulation the automobile vibration is written by MATLAB.

摘要本文应用牛顿法建立七自由度汽车乘坐振动模型，并用MATLAB编写程式，拟模汽车在随机路面激振下的响应下。

In this dissertation, two methods were adopted to build dynamics model for vehicle ride comfort analysis: one is eight freedom vehicle ride comfort differential equation model in which lateral movement of driver and vehicle body was considered. Combined with time domain model of random road input, we got the driver and vehicle's moving displacement. The other method, we built a Forland truck virtual prototyping using ADAMS, it is a 3D machine model, totally with 596 freedom degrees, every factor that influences the vehicle ride comfort was considered, finally complete the time domain simulation on random road input.

本文采用两种方法建立了车辆平顺性分析的动力学模型：8自由度车辆平顺性分析的微分方程模型，考虑了驾驶员和车体的侧倾，结合随机路面激励的时域模型，在B级路面输入条件下，进行了时域仿真求解，得到车辆和驾驶员在汽车坐标系中各个方位上随时间历程的运动位移；利用ADAMS软件建立的福田小卡汽车，共计596个自由度的三维实体整车虚拟汽车模型，全面地考虑了影响平顺性的各种因素，然后通过对路面功率谱的变换生成适合于ADAMS/Tire的路面文件，实现了整车虚拟样机在随机输入激励下，车辆振动模型的时域仿真求解。

Water freezes at the temperature of 0 degrees Celsius.

水结成冰的温度是32华氏度（32 ）或零摄氏度（0℃）。

On the Celsius, 0 degree is the freezing point of water and 100 degrees is the boiling point of water.

在摄氏单位中，水的结冰点为0度，沸点为100度，在华氏单位中，水的结冰点为32度，沸点为 212度。

We were in dreams under veranda when the thermometer fell to 18 degrees below freezing point.

寒暑表降到冰点下十八度的时候，我们也是在廊下睡觉。

It's 10 degrees below freezing now.

现在是零下10度。

The main identifying characters of wear particle on the ferrogram such as dimension,distribution,quality,component and form of the wear particle were generalized for the three friction couples of gear case including gear,bearing and sliding contact which is in the different phases of running-in wear,normal wear and abnormal wear and in the different degrees of overload,over-speed and fatigue.

介绍了铁谱分析的原理、样品的制备方法和铁谱分析的步骤，概括了齿轮箱齿轮、滚动轴承、滑动接触3种主要摩擦副在磨合磨损、正常磨损、异常磨损3个阶段的磨粒的主要识别特征，包括尺寸、尺寸分布、数量、成分和形貌等。

The present paper design content is the expandable belt feeding engine, is transmits the force of traction through between the transmission drum and adhesive tape's friction force, concurrently makes the hauling organization and the load bearing organization one kind by the adhesive tape for the material equipment, expands and contracts the arm rear part establishment to have the expandable hydraulic prop, causes the complete machine length nimble elongation or the reduction, between the supporting roller the included angle increases to causes the belt fastener inclination angle to be possible to amount to 25 degrees, has for estimates in a big way, the transportation is steady, the service is convenient, the area slightly and so on characteristics, brings conveniently to the load, can the widespread application in each kind of bulk collection and distribution center production scene.

本论文设计内容是可伸缩带式给料机，是通过传动滚筒与胶带之间的摩擦力来传递牵引力，以胶带兼作牵引机构和承载机构的一种给料设备，伸缩臂尾部设置有可伸缩的液压支柱，使整机长度灵活的伸长或缩短，托辊之间夹角增大可使皮带机倾角可达到25度，具有给料量大，运输平稳，维修方便，可多点卸料，占地面积小等特点，给装车带来方便，能广泛的应用于各种散料集散地的生产现场。

The present paper design content is the expandable belt feedingengine, is transmits the force of traction through between thetransmission drum and adhesive tape's friction force, concurrentlymakes the hauling organization and the load bearing organizationone kind by the adhesive tape for the material equipment, expandsand contracts the arm rear part establishment to have theexpandable hydraulic prop, causes the complete machine lengthnimble elongation or the reduction, between the supporting rollerthe included angle increases to causes the belt fastenerinclination angle to be possible to amount to 25 degrees, has forestimates in a big way, the transportation is steady, the serviceis convenient, the area slightly and so on characteristics, bringsconveniently to the load, can the widespread application in eachkind of bulk collection and distribution center productionscene.

本论文设计内容是可伸缩带式给料机，是通过传动滚筒与胶带之间的摩擦力来传递牵引力，以胶带兼作牵引机构和承载机构的一种给料设备，伸缩臂尾部设置有可伸缩的液压支柱，使整机长度灵活的伸长或缩短，托辊之间夹角增大可使皮带机倾角可达到25度，具有给料量大，运输平稳，维修方便，可多点卸料，占地面积小等特点，给装车带来方便，能广泛的应用于各种散料集散地的生产现场。

Results The crystal type of starch in the two species of Fritillaria L.was the characteristic B-type which was in consistent with that of potato starch. The degrees of crystallinity of F.

结果通过研究发现，两种贝母淀粉的晶体类型都为典型的B型，这与马铃薯淀粉的晶体类型是一致的。

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。