查询词典 track down

Therefore, since the early 1960s, countries around the world have been carried out to the overall rail-bed, or curing alternative granular ballast of the various Ballastless track structure of the system, some countries have Ballastless track as the main high-speed railway Track structure of a comprehensive application.

因此，自上世纪六十年代初，世界各国铁路相继开展以整体式或固化道床替代散粒体道碴的各类无碴轨道结构的系统研究，一些国家已把无碴轨道作为高速铁路的主要轨道结构型式全面推广应用。

Technical Analysis of Ballastless Track of DB and ProposalsXin Xuezhong Abstract Ballastless track features little maintenance,high reliability,long service life,low cost compared to its service life, low structure height, large transverse track resistance, ballast splashing—proof,and flexible superelevation and gradient.

文章摘要：摘要：由于无碴轨道具有维修量小，稳定性好，使用寿命长，全寿命周期费用低，结构高度低，横向轨道阻力大，可避免飞碴，超高、坡度设置灵活等优点，在德国高速铁路建设中受到重视，得到了广泛应用，并形成了Rheda、Zt~BLIN、BERLIN、B6GL等系列产品。

Technical Analysis of Ballastless Track of DB and ProposalsXin Xuezhong Abstract Ballastless track features little maintenance,high reliability,long service life,low cost compared to its service life, low structure height, large transverse track resistance, ballast splashing—proof,and flexible superelevation and gradient.

由于无碴轨道具有维修量小，稳定性好，使用寿命长，全寿命周期费用低，结构高度低，横向轨道阻力大，可避免飞碴，超高、坡度设置灵活等优点，在德国高速铁路建设中受到重视，得到了广泛应用，并形成了Rheda、Zt~BLIN、BERLIN、B6GL等系列产品。

This method selects two parameters, energy and variance, as the characteristic parameter of trolley track, and successfully in extracts the feature frequency belt of trolley track vibration. Furthermore, this technology is applied to practical engineering programs and has good veracity and reliability.2. According to the research of this thesis on the trolley tracks\' present data, the status classification of trolley track with normal distribution is presented. This method divides trolley tracks\' situations into five parts and perfects the classifying method of trolley tracks\' mechanical situation.

具体工作如下；1、将小波包分析方法运用到岸桥小车轨道振动信号的分析中，选取能(来源：A65BC0f论c0文网www.abclunwen.com)量与方差作为轨道的振动特征参数，有效提取出铰点部位与非铰点部位的振动特征频段。2、将正态分布原理引入到岸桥小车轨道铰点机械性能状态的划分之中，并用最大熵概率分布加以验证，准确地反映了实际情况，并定义了正态分布诊断准则的状态分级评价的原则和临界点，方便和简化了状态判断的决策过程。

Following dual titles in cross country at the end of 2007,the Gryphons repeated in the spring of 2008 winning track and field and track and field making Guelph the first school to win both men's and women's cross country and track CIS titles in one season.

下面的双冠军跨国家在2007年底， Gryphons多次在赢得2008年春季田径和田径决策圭尔夫大学的第一所学校获得两个男子和妇女的跨国家和跟踪独联体标题在一个赛季。

The heart-track activities Frog heart on the track in line with the opening of the wing-track direction of paste.

活动心轨的辙叉心轨就与开通方向一致的翼轨密贴。

That's the illest rapper choppin' and screwin' it couldnt snatch the game that's what they told me, so i'm provin it put the truth in texas with scott storch and you got you a hit hittin never miss rep yo click and throw 'em high because chamillionaire's the anwser to the game like allen i middle fingaz to the sky, if they don't like that reply cause any dj that deny is a mother fu errrwwwee lie so give the ladies what that want got 'em racin' to the front of the stage to feel the bass and tell the dj turn it up yeaah sound of revenge saying universal to go get my plaque rappin's dead so i'ma bring it back, like dj's do when they hear my track check out my track record, they'll say i'ma track wrecka hotter than a black pepper now that i am back nigggga (he's baaack) you can't get mad if you feel that you and cap fit ya drop the biggest stat's ever so don't let that bbback hit ya i'ma show you how to get your shine on turn it up the dj playing my song everybody keep on calling my phone which one of y'all am i gone take home i'ma show 'em how to get the club crunk give 'em something thats goin' rattle that trunk tip ya cups up until ya get drunk tell the dj to play it loud and turn the beat up..

这就是illest说唱choppin'和screwin'它 couldnt抓举比赛，这是他们告诉我，所以我是普罗万把与斯科特斯托奇得克萨斯真理，你有你一打 hittin不会错过代表处溜溜点击并抛出'时间高因为南方说唱歌手Chamillionaire的，对像艾伦i游戏anwser 中间fingaz向天空，如果他们不这样的答复造成任何DJ否认是母亲富errrwwwee谎言所以让女人想要什么了'时间racin'到台前感受到低音，告诉道琼斯把它 yeaah说，健全的报复普遍去让我的牌匾 rappin死所以我是一个带回来，像DJ的不当他们听到我的轨道检查我的记录，他们会说我是跟踪wrecka 热比黑胡椒现在我回来了nigggga 你不能发火，如果你觉得你的帽子适合亚下降最大的Stat公司有史以来所以不要让这样的bbback击中亚我是告诉你如何获得把它的DJ打我的歌大家继续叫我的电话你们中的一个我拿回家了我是一个展示'时间如何让俱乐部旷课让'时间的东西多数民众赞成goin'摇铃的干线提示亚杯，直到亚醉告诉道琼斯发挥大声扭转殴打。。

In order to solve the problems of bad shunting and red light strip phenomenon at electric railway section caused by the defective of asymmetric pulse track circuit receiver formerly, a new type of asymmetric impulse track circuit receiver is designed. It takes the PIC16F887 single-chip microcomputer as central processing unit of the system, realizes processing and judging the asymmetric impulse from the track transformer automatically. The article focused on the receiver work flow, hardware circuit and software design.

摘 要：为了解决以往多数不对称脉冲轨道电路接收器存在缺陷而导致的分路不良问题和电气化区段空闲&红光带&现象，设计了一种新型脉冲轨道电路接收器，系统以PIC16F887单片机为核心处理单元，自动实现对由轨道变压器传来的不对称脉冲信号进行处理和判决，重点讨论了接收器工作流程、硬件电路实现以及软件设计。

Static state of the string has a track that is located on the string and its very near surroundings, but thedynamic state of the string is the diagonal on which the ladder takes place.The track of a dynamic state is always bigger than the track of a static state.

举例来说，当一梯发生约一个字符串并通过棋盘沿对角线，静止状态的字符串有一个轨道，就是坐落于弦乐及非常接近的周围环境，但动态状态的字符串是对角线上的阶梯上露面。

According to the characteristics of track correlation and basic principles of data association, a track correlation algorithm is presented for sensor level track fusion systems.

本文第三章比较了传感器级融合结构的航迹关联与单传感器数据关联的特点，研究了经典数据关联方法的基本思想。

Therefore, it is imperative that you need to be prepared for the great change that is about to occur.

所以，你需要为快要出现的伟大改变准备好，这是必要的。

If u agree with our suggestion of dicker trade,we will exchange paper with u wood.

如果你方同意我们进行易货贸易的建议，我们将用纸与你们交换木材。