车

Simulation result shows that this method is simple and convenient, can directly reflect changing of important parameters in the braking process such as velocity, acceleration, braking distance, braking force, loading and adhesion power etc; It can avoid the overelaborate procedure of manual calculation and programming ,offer strong tools for study on the braking performance of car-trailer.

通过建立拖挂式房车制动过程的力学模型，并在MATLAB/SIMUUNK环境下搭建仿真模型，时拖挂式房车制动过程进行动态仿真，结果表明，该方法能简单、直观、便捷地反映拖挂式房车制动过程中的速度、加速厦、制动距离、制动力、载荷、附着力等参数的变化，避免了手工计算或编程的繁琐，为拖挂式房车制动性能的研究提供有力的工具。

PINGHU FEIDA GARMENTS CO., LTD is specializing in the production of exporting garments. There are 35 million yuan in fixed assets. The factory covers an area of 38000 square meters with 900 staffs. We have the modern equipments such as, 600 sets of computer sewing machines,66 sets of 2-needle sewing machines,88sets of 5-thread overlock machines,14 sets of flatlock machines and various associated equipments,2DEC CAD operating system. There are 22 production lines with high shills in manufacture department.

我公司是专业生产外贸出口服装自营进出口生产企业，拥有员工980人，固定资产3500万元，厂区占地面积38000平方米，厂房建筑面积25000平方米，附属建筑物3800平方米，拥有电脑平缝车660台，双针车66台，五线包缝机88台，绷缝车14台，带刀平缝车22台等各类花式配套设备108台，德卡CAD制作系统2套，其厂房设计科学，布局合理，通道场地宽，装璜精华，内设中央空调，服装专用设备齐全，开设22条生产流水线，采用大流程课桌式操作。

According to a report by cheshi.com.cn, the prices at mini-cars market rosed remarkably in September, and the prices at the mid-end,high-end and luxury markets remained the same as in August. The prices of small-sized cars continued to fall sharply, lowering the general price level of domestically produced passenger cars.

据网上车市发布的&中国汽车市场价格指数报告&显示，9月份，微型车市场价格出现较大幅度提升，中级车、高级车和豪华车价格指数与上月基本持平，小型车降势未改，价格仍呈加速下降状态，拉低了国产乘用车整体价格水平。

The basic theory of the wireless shunting locomotive signal ing and monitoring system is introduced.

指出了当前机车调车方法的不足，介绍了无线调车机车信号和监控系统的基本原理，设计了在无线调车方式下的车地通信模型，并说明了该模型中应该注意的一些问题。

This battery-powered electric tug can push or pull up to 1,000 pounds and is versatile enough to handle a variety of cart types, including dollies, hand trucks, laundry carts, hospital carts, maintenance carts and hospital beds.

这种电池的电动拖船可以推动或拉动1000磅，灵活，足以处理的车种，包括手推车，手推车，洗衣车，医院车，维修车和各种病床。

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。

The modeling methods about vestibule diaphragm, coupler and draft gear are introduced, too. Among the six Models, Model A and Model B can be used to study the vehicle stability and curve negotiation under different track situations. Model C and Model D can be used to carry out the stability, dynamic curving behavior and ride comfort of the high-speed passenger car. Model E and Model F are three-dimension train dynamic models which consist of three cars (head car, intermediate car and tail car).

所建立的6种动力学模型中，模型A和模型B可用于研究不同轨道条件下车辆的运动稳定性及动态曲线通过性能；模型C和模型D可以用来研究车辆的运动稳定性、动态曲线通过性能及运行平稳性；模型E和模型F是列车系统动力学分析模型，都是由三节车组成的列车单元，三车列车模型作为一个最小的列车单元，包含了头车、中间车和尾车，已能够反映整个列车的动力学特性。

Rates of theft and carjacking in many countries are considerably higher than in the US, and companies that rent nice cars also incur more expense from the loss of these cars.

盗窃、劫车率在许多国家都dada高于美国、公司租好车，也招致更dade损失而牺牲这些旧车。dan是，从当地租划算车处未必便宜可言。

Ideally suited for sewing two needle fancy and functional seams,specially on closed shoeuppers.Owing to the combination of wheel feed nat driven roller presser,the machine stitches over cross seams with ease.Accurate and uniform setting of stitch es and i

适合于鞋面的车缝及饰缝，特殊综合送，车薄料不土起皱，车厚料缝迹美观，釜座位于针的右方，方便于童鞋及各式鞋类的车蓬，缝目设定精确一致，大小可自由调整，设有操作简便的安全离合器，可减小梭头的损坏，采用球型及针状轴承，配合连杆式天平，磨擦小免保养。

Today there are hot hatches, urban hatchbacks, enviro-cars and econo-boxes.

如今，汽车市场上的小型车有掀背小钢炮、都市掀背车、环保车和微型经济车。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。