查询词典 track system

According to the working characteristics of high-speed railway station, the principles to track using are formulated. Regarding the system of receiving and dispatching trains as a queuing system, the working process of making track plan is studied through analyzing the working process of queuing system. Moreover, the adjustment principles and measures for track plan are studied, and then the working process of making the adjustment plan on track using is set down.

根据高速铁路车站作业特点制定了到发线使用原则，并把车站接发车系统看作一个排队系统，通过分析排队系统作业过程研究了编制到发线运用计划的工作流程；进而研究了当列车运行波动时，到发线运用计划的调整原则和调整方法，制定了编制到发线调整计划的工作流程。

According to structural characteristics of floating slab tracks, a track segment element was taken between two adjacent fasteners. For each element, rails were regarded as Euler beams supported by discrete viscoelastic supports. The fasteners and rubber supports were replaced by a linear spring and damp. So the vibration model of the floating slab track was established. In constructing vibration model of a metro train, each car of the metro train with two suspensions was modeled as a multi-rigid body system, in which rigid bodies were connected with each other by a linear spring and damp. Combining the potential energy of vertical vibration of the track with that of the metro train, the total potential energy of vertical vibration of the train and track was obtained. And then, the matrix equation of vertical vibration of the system was established using the principle of total potential energy with stationary value in elastic system dynamics and the "set-in-right-position" rule for formulating system matrices. The vibration responses of the system can be obtained by solving the matrix equation with the direct time integration such as Wilson-θ method.

摘 要：针对浮置板式轨道结构特点，取相邻2个扣件之间的轨道为1个轨段单元，钢轨视为连续弹性点支承Euler梁，浮置板视为弹性薄板，扣件系统及橡胶支座均模拟为线性弹簧及粘滞阻尼器，建立浮置板式轨道振动模型；将城轨列车中的车辆均离散为多刚体系统，各刚体之间通过线性弹簧及粘滞阻尼器相连，建立列车振动模型；将浮置板式轨道及列车振动势能叠加，得到系统竖向振动总势能；基于弹性系统动力学总势能不变值原理及形成系统矩阵的"对号入座"法则，建立此系统竖向振动矩阵方程；采用Wilson-θ逐步积分法求解此矩阵方程，得出此系统竖向振动响应。

Weak government monopoly on land, two-track system and reserve land resources for sustainable development constraints become less prominent contradictions

薄弱的政府垄断土地，双轨制和后备土地资源的可持续发展的制约越来越突出矛盾

The price of the original two-track system is to promote the price reform, has become a means of profiteering by the rich.

当初的价格双轨制是为了推进价格改革，却成了官倒发财的手段。

In China Taiwan market as represented by two-track system, the securities and financial companies are not living in a monopoly, which is characterized mainly: securities companies and securities and financial transactions in the credit business competition and cooperation.

按双轨制度，证券和金融企业为代表的不是生活在一个垄断的，它的主要特点是：证券公司，证券和信贷业务竞争与合作的金融交易。

However, in a burst of applause, the experts pointed out, we must soberly aware that the current government monopoly on land the actual poor, two-track system and reserve land, fewer resources and other factors have become the city's operating state-owned land use rights of tendering, auction, listing the work of further worry.

然而，在一片叫好声，专家们指出，我们必须清醒地看到，当前政府垄断土地的实际穷人，双轨制和储备土地，更少的资源和其他因素，已成为城市的运营国有土地使用权招标，拍卖，上市工作的进一步担忧。

However, in practice, this dual-track system is actually twofold.

然而，在实践中，这双轨制实际上是双重的。

For the diversity of viaduct and track system, the interaction of every component and the material non-linear, there are no perfect methods of analysis and evaluation until now.

其模型的多样性、各个子系统之间相互作用的耦合性、材料性能的非线性，使得高架桥和轨道系统的分析与评价较为复杂。

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。

"Seeking help from the Department of Veterans' Affairs… involves a two-track system," says a copy of the plaintiff's trial brief filed in federal court last week.

&求助署退伍军人事务部…涉及两个双轨制，说：&复制了原告的案情摘要中，在联邦法院上周。

Plunder melds and run with this jewel!

掠夺melds和运行与此宝石！

My dream is to be a crazy growing tree and extend at the edge between the city and the forest.

此刻，也许正是在通往天国的路上，我体验着这白色的晕旋。