查询词典 rail

Based on rail/wheel reaction and track/bride reaction theory and systems engineering theory, new vehicle-track and vehicle-track-bridge system dynamic models are established and discussed in details, including ballast track model and ballastless track model. The characteristics of the models are:(1) vehicle-track and vehicle-track-bridge system dynamic models are coupled in vertical and lateral;(2) track vibration on bridge is taken in account, track on bridge is considered as one or two layer continuous-point supported rail model, according to actual track structure, interaction between vehicle and bridge transfer from track structure;(3) three type of ballastless track models (tieembanked, elastic-tie-block, slab track) are presented;(4) models reflect the main feature of actual vehicle, track and bridge structure, the response computation frequency of models is relatively broad, which can be applied to analyze both low frequency and high frequency vibration.

基于轮轨相互作用和线桥相互作用特点，本文从系统工程角度出发建立了车辆、有碴轨道和无碴轨道、简支箱梁桥垂向和横向耦合系统动力分析模型，该系统模型具有以下特点：（1）车线、车线桥体系均考虑为垂向、横向耦合振动系统，车线间通过轮轨接触几何关系耦合，轨道与桥梁间通过轨道与梁体间的力与位移协调条件耦合；（2）充分考虑桥上线路在车线桥系统中参振作用，根据桥上线路轨道结构特点将桥上轨道结构模型具体化，即对桥上轨道结构视为多层支承体系，车桥间的动力作用通过轨道结构来传递；（3）建立了三种形式无碴轨道动力分析模型，即长轨枕埋入式、弹性支承块式和轨道板式无碴轨道模型；（4）系统模型详细，分析频带宽，适用范围较广。

Place all testing devices on the testing machine in the following order: bearing plate, emery cloth (with the granular surface facing upward), the resilient pad to be tested, emery cloth (with the granular surface facing downward), short rail (make sure the short rail is placed within the action area of the resilient pad to be tested).

把试验装置安放在试验机上，安放顺序为：支承钢板、砂布、被测弹性垫层、砂布、短钢轨（确保短钢轨放置在被测轨下弹性垫层起作用的区域）。

Thus the lathe bed guide rail carried on special surface layer quenching processing to enhance the guide rail resisitance to wear.

床身导轨进行了特殊的表层淬火处理，从而提高了导轨的耐磨性。

Second, the random variables in reliability analysis of the steel rail are discussed. These random variables include the wheel load, the stiffness of the rubber pad and the bed, the temperature stress and the fatigue ultimate strength of the steel rail. And their probability distributions and parameters are discussed thoroughly.

其次，对钢轨可靠度分析中涉及的随机变量如轮载力、轨下胶垫刚度、道床路基联合刚度、温度应力及钢轨疲劳极限强度的概率分布类型和统计特征进行了详细讨论。

Finished oil to slide back and forth rolling about in the guide this time to be loaded on rail times should first pay attention to when you do not install the first fixed rail, take the fixed screw fitted well to keep level in the belt and slip block is fixed, then install a good lens, dimming what avenue is finished X's whereabouts.

上完油在让滑块在导轨来回滚动一下，这时须次先把导轨装上，注意装导轨时不要先固定，要把固定钉全部装好，保持水平，在把皮带与滑块固定，再把透镜装好，调光一下X去向的去路完毕。

Setting slide layer is a good measure to reduce the interaction between the rail and bridge, and rail expansion joint on long span bridge can be cancelled.

桥上纵连板式轨道借助底座板的纵连解决梁端转角对轨道结构的不利影响，通过设置滑动层来削减梁轨相互作用，在大跨桥上可以取消钢轨伸缩调节器，这种设计思想对大跨桥上铺设无砟轨道具有积极的借鉴意义。

The urban rail transportation bridge is regarded as an important component of the rail transportation, and the research of its seismic security is an essential subject.

城市轨道交通桥梁作为轨道交通的一个重要组成部分，其抗震安全性的研究是个至关重要的课题。

With a Rage Bulk rail car unloading system, you will have the most efficient and profitable bulk material handling operation from rail car to storage silo, or other destination.

使用我们的轨道车卸载系统，从轨道车到料斗或其他目的地，您的材料处理解决方案都是最高效的和最便捷的。

Meanwhile, we can produce our conventional products like heavy rail light rail I-steel and Channel steel.

本公司按国际船级社规范生产造船用球扁钢、角钢，同时可生产本厂传统产品：重轨、轻轨、工字钢、槽钢等。

Minitype rolling mill exploitation has gone to the lavatory for the experiment and scientific research have provided quite a few , the improvement the main body of a book has been carried out on present use rolling mill of precise copper of our university laboratory, has adopt gear wheel deflection falling-in way to have realized rolling mill controlling to rolling thickness , the rolling mill improving the day afer tomorrow has adopt three set of gear wheels to be engaged , two set of gear wheels axes among them may slide respectively along the erect sliding rail and the arc sliding rail , come true thereby to controlling rolling thickness.

小型轧机的开发为实验和科研提供了不少方便，本文对我校精密铜实验室现用轧机进行了改进，采用了齿轮变位啮合办法实现了轧机对轧制厚度的控制，改进后的轧机采用三组齿轮啮合，其中两组齿轮的轴线可分别沿竖直滑轨和弧形滑轨滑动，从而实现对轧制厚度的控制。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了