查询词典 track down

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。

I dance around this empty house Tear us down Throw you out Screaming down the halls Spinning all around and now we fall Pictures framing up the past Your taunting smirk behind the glass This museum full of ash Once a tickle Now a rash This used to be a funhouse But now it's full of evil clowns It's time to start the countdown I'm gonna burn it down down down I'm gonna burn it down 9, 8, 7, 6 5 4, 3, 2, 1, fun Echoes knocking on locked doors All the laughter from before I'd rather live out on the street Than in this haunted memory I've called the movers Called the maids We'll try to exorcise this place Drag my mattress to the yard Crumble tumble house of cards This used to be a funhouse But now it's full of evil clowns It's time to start the countdown I'm gonna burn it down down down This used to be a funhouse But now it's full of evil clowns It's time to start the countdown I'm gonna burn it down down down I'm gonna burn it down 9, 8, 7, 6 5 4, 3, 2, 1, fun Oh, I'm crawling through the darkest home My key don't fit my life no more I'll change the drapes I'll break the plates I'll find a new place Burn this fucker down do do do do dodo do do do do do dodo do do do do do dodo do do do do do dadadada do do do do dodo do (9, 8, 7, 6 5 4, 3, 2, 1) do do do do dodo do do do do do dodo do do do do do dodo doo This used to be a funhouse But now it's full of evil clowns It's time to start the countdown I'm gonna burn it down down down This used to be a funhouse But now it's full of evil clowns It's time to start the countdown I'm gonna burn it down down down I'm gonna burn it down

本人舞蹈解决这个空房子撕裂我们失望你驱逐出去尖叫了大厅纺纱各地，现在我们属于图片框过去您的嘲弄微笑背后的玻璃该博物馆完全灰一旦痒现在皮疹这曾经是一个funhouse 但现在是充满了邪恶的小丑现在是时候开始倒计时我要去烧伤跌下来了我要去刻录下来 9 ， 8 ， 7 ， 6 5 4 ， 3 ， 2 ， 1 ，乐趣回声敲锁车门所有的笑声之前我宁愿住在街道上进行比这个闹鬼记忆我已经称为推动者所谓的女佣我们会尝试傩这个地方拖曳我床垫的码崩溃暴跌众议院卡这曾经是一个funhouse 但现在是充满了邪恶的小丑现在是时候开始倒计时我要去烧伤跌下来了这曾经是一个funhouse 但现在是充满了邪恶的小丑现在是时候开始倒计时我要去烧伤跌下来了我要去刻录下来 9 ， 8 ， 7 ， 6 5 4 ， 3 ， 2 ， 1 ，乐趣噢，我最黑暗的爬行通过主页我的钥匙不适合我的生活没有更多我会改变窗帘我要打破盘子我会找到一个新的地方烧伤这个笨蛋下跌做这样做这样做渡渡鸟做这样做这样做渡渡鸟做这样做这样做渡渡鸟这样做这样做dadadada 这样做这样做渡渡鸟做（ 9 ， 8 ， 7 ， 6 5 4 ， 3 ， 2 ， 1 ）做这样做这样做渡渡鸟做这样做这样做渡渡鸟这样做这样做渡渡鸟斗这曾经是一个funhouse 但现在是充满了邪恶的小丑现在是时候开始倒计时我要去烧伤跌下来了这曾经是一个funhouse 但现在是充满了邪恶的小丑现在是时候开始倒计时我要去烧伤跌下来了我要去刻录下来

Newest arrival of shipment legal copy Hong Kong NewRay brand alloy vehicle mold: P42DC American AMTRAK the railroad company P42DC skeleton line train model, the famous American AMTRAK nation railroad company has in the world quantity most railway engines and the compartment, each time AMTRAK railway engine all is the American economy development transportation person who has rendered meritorious service, the rough iron-covered front of a train and Europe's electric train fine forms clearly the opposite contrast, is object which the world train amateur pursues vigorously holds. 1 to 87 proportions, the zinc base alloy +ABS engineering plastics material quality, the ultra fine paint surface works, independent power front of a train +2 compartments, may assemble at will, the unique fluctuation type from the charge system, uses 4 ordinary 5th battery then, charges a minute then to let the train run quickly 3 minutes on the track, the ultra long ultra multi- varieties from assemble the track, but freely assembles the track shape which any you likes, track most large diameter may achieve 127.5 centimeters, in have 8 straight axles, 10 curves axles, And has the cross overlapping track, may transform the direction respectively toward to change a track 2 and the charge platform station and so on the special track east, absolutely is you is unable to put down ultra is very fond of east, is presents the present certainly good to choose!

最新到货的正版香港NewRay品牌合金车模： P42DC 美国AMTRAK铁路公司P42DC型干线列车模型，著名的美国AMTRAK全国铁路公司拥有世界上数量最多的火车头和车厢，每个时代的AMTRAK的火车头都是美国经济发展的运输功臣，粗犷的铁皮车头与欧洲的电气列车的精致形成截然相反的对比，是全世界火车爱好者极力追捧的对象。1比87比例，锌合金+ABS工程塑料材质，超精致的漆面做工，一个独立动力车头+2节车厢，可随意拼装，独特的升降式自充电系统，使用4节普通的5号电池即可，充电一分钟即可让火车在轨道上奔驰3分钟，超长超多品种的自组装轨道，可自由组装任何你喜欢的轨道形状，轨道的最大直径可达到127.5厘米，内有8根直轨，10根弯道轨，并配有十字交叉轨道、可变换方向的分向变道轨道2根和充电月台基站等特殊轨道，绝对是你爱不释手的超酷好东东，更是馈送礼品的绝佳选择！

Newest arrival of shipment legal copy Hong Kong NewRay brand alloy vehicle mold: F7 American AMTRAK the railroad company F7 skeleton line train model, the famous American AMTRAK nation railroad company has in the world quantity most railway engines and the compartment, each time AMTRAK railway engine all is the American economy development transportation person who has rendered meritorious service, the rough iron-covered front of a train and Europe's electric train fine forms clearly the opposite contrast, is object which the world train amateur pursues vigorously holds. 1 to 87 proportions, the zinc base alloy +ABS engineering plastics material quality, the ultra fine paint surface works, independent power front of a train + three compartments, may assemble at will, the unique fluctuation type from the charge system, uses 4 ordinary 5th battery then, charges a minute then to let the train run quickly 3 minutes on the track, the ultra long ultra multi- varieties from assemble the track, but freely assembles the track shape which any you likes, track most large diameter may achieve 127.5 centimeters, in have 8 straight axles, 10 curves axles, And has the cross overlapping track, may transform the direction respectively toward to change a track 2 and the charge platform station and so on the special track east, absolutely is you is unable to put down ultra is very fond of east, is presents the present certainly good to choose!

最新到货的正版香港NewRay品牌合金车模： F7 美国AMTRAK铁路公司F7型干线列车模型，著名的美国AMTRAK全国铁路公司拥有世界上数量最多的火车头和车厢，每个时代的AMTRAK的火车头都是美国经济发展的运输功臣，粗犷的铁皮车头与欧洲的电气列车的精致形成截然相反的对比，是全世界火车爱好者极力追捧的对象。1比87比例，锌合金+ABS工程塑料材质，超精致的漆面做工，一个独立动力车头+三节车厢，可随意拼装，独特的升降式自充电系统，使用4节普通的5号电池即可，充电一分钟即可让火车在轨道上奔驰3分钟，超长超多品种的自组装轨道，可自由组装任何你喜欢的轨道形状，轨道的最大直径可达到127.5厘米，内有8根直轨，10根弯道轨，并配有十字交叉轨道、可变换方向的分向变道轨道2根和充电月台基站等特殊轨道，绝对是你爱不释手的超酷好东东，更是馈送礼品的绝佳选择！

Newest arrival of shipment legal copy Hong Kong NewRay brand alloy vehicle mold: F59PHI American AMTRAK the railroad company F59PHI skeleton line train model, the famous American AMTRAK nation railroad company has in the world quantity most railway engines and the compartment, each time AMTRAK railway engine all is the American economy development transportation person who has rendered meritorious service, the rough iron-covered front of a train and Europe's electric train fine forms clearly the opposite contrast, is object which the world train amateur pursues vigorously holds. 1 to 87 proportions, the zinc base alloy +ABS engineering plastics material quality, the ultra fine paint surface works, independent power front of a train +2 compartments, may assemble at will, the unique fluctuation type from the charge system, uses 4 ordinary 5th battery then, charges a minute then to let the train run quickly 3 minutes on the track, the ultra long ultra multi- varieties from assemble the track, but freely assembles the track shape which any you likes, track most large diameter may achieve 127.5 centimeters, in have 8 straight axles, 10 curves axles, And has the cross overlapping track, may transform the direction respectively toward to change a track 2 and the charge platform station and so on the special track east, absolutely is you is unable to put down ultra is very fond of east, is presents the present certainly good to choose !

最新到货的正版香港NewRay品牌合金车模： F59PHI 美国AMTRAK铁路公司F59PHI型干线列车模型，著名的美国AMTRAK全国铁路公司拥有世界上数量最多的火车头和车厢，每个时代的AMTRAK的火车头都是美国经济发展的运输功臣，粗犷的铁皮车头与欧洲的电气列车的精致形成截然相反的对比，是全世界火车爱好者极力追捧的对象。1比87比例，锌合金+ABS工程塑料材质，超精致的漆面做工，一个独立动力车头+2节车厢，可随意拼装，独特的升降式自充电系统，使用4节普通的5号电池即可，充电一分钟即可让火车在轨道上奔驰3分钟，超长超多品种的自组装轨道，可自由组装任何你喜欢的轨道形状，轨道的最大直径可达到127.5厘米，内有8根直轨，10根弯道轨，并配有十字交叉轨道、可变换方向的分向变道轨道2根和充电月台基站等特殊轨道，绝对是你爱不释手的超酷好东东，更是馈送礼品的绝佳选择！

Firstly, from Gauss' equations and relative motion equations, the relation of control impulse and relative motion was expressed as analysis formulas and simplified based on the near circular condition. By deeply analyzing the mechanism of impulses in each directions (radial, in-track and cross-track directions) effect on relative motion respectively, two maneuvers to establish formation flying are provided: one is to utilize the impulses in radial and cross-track directions, the other is to utilize the impulses in along-track and cross-track directions. Both of the two methods can establish satellite formation flying of any configuration. The method with impulses irradial and cross-track directions needs only 3 impulses, while the method with impulses in along-back and cross-track directions needs 4 impulses. Lastly, by an example of establishing a space-circle formation flying, two maneuvers were compared with each other in the amount of impulses and fuel consuming estimation.

首先由高斯型拉格朗日轨道摄动运动方程得到轨道坐标系中控制冲量与轨道根数偏差的关系，基于近圆轨道的条件简化并带入相对运动方程，得到控制冲量与相对运动的关系表达式；通过深入分析各个方向（径向、沿迹向与轨道面法向）的控制冲量对相对运动的影响，给出了分别用径向与轨道面法向控制冲量组合和沿迹向与轨道面法向控制冲量组合实现编队捕获的两种控制策略；最后给出了一个空间圆编队捕获实例，并从燃料消耗、施加冲量次数及捕获时间等角度对比研究了两种控制策略的特点。

Track roller: Singe flange 4 Double flange 2 Carrier roller: 2 Idler 1 Type of track: single grouser combined Tension mode of track: hydraulic Pitch: 203 mm Number of shoes 38 pieces Width of shoe 500 mm Length of track on ground 2570 mm Sealed and lubricated track ▲▲The pitch , numbers and width of track shoes are the same with the general track.

支重轮 单边四个双边二个托链轮二个引导轮一个履带型式单履齿组合式履带涨紧型式液压涨紧节矩 203 mm 履带板数 38 块履带板宽 500 mm 履带接地长度 2570 mm 密封和润滑履带▲▲该履带的节距、履带板数、履带板宽与普通的履带相同。

Wheel/rail noise of the high-speed slab track on concrete bridge and that of the urban elevated supporting block track are predicted respectively. Noise of the slab track, compared with that of the ballasted track, is more severe. The noise of the slab track is about 6.2dBA higher than that of the ballasted track for the receiver nearby the rail, and about 3.5dBA higher than that of ballast track for the receiver

对降低高速铁路桥上板式无碴轨道及城市轨道交通桥上支承块式无碴轨道轮轨噪声的技术措施进行了研究，包括：(1)分别就板式轨道和支承块式轨道结构参数的低噪声设计原则进行了研究；(2)对几种典型的新型轨道用吸声材料的降噪效果进行了分析，结果表明降噪效果显著；(3)就声屏障高度、位置、形状以及声屏障内侧敷设吸声材料对降噪效果的影响进行了分析，结果表明：声屏障越高、越接近轨道，降噪效果越好；声屏障内侧敷设吸声材料，可降低钢轨近旁噪声2.0～3.0dBA，可降低近地面噪声约1.5～2.0dBA

Yeaah It's something that you need to have Cause when she leave yo *** she gone leave with half 18 years, 18 years And on her 18th birthday he found out it wasn't his Now I aint sayin she a gold digger (When I'm Need) But she aint messin wit no broke Now I aint sayin she a gold digger (When I'm need) but she aint messin wit no broke get down girl go head get down get down girl go head get down get down girl go head get down get down girl go head [Verse 3:] Now I aint sayin you a gold digger you got needs You dont want ya dude to smoke but he can't buy weed You got out to eat and he cant pay yall cant leave There's dishes in the back, he gotta roll up his sleeves But why yall washin watch him He gone make it into a Benz out of that Datson He got that ambition baby look in his eyes This week he moppin floorz next week it's the fries So, stick by his side I know this dude's ballin but yea thats nice And they gone keep callin and tryin But you stay right girl But when you get on he leave yo *** for a white girl Get down girl go head get down Get down girl go head get down get down girl go head get down get down girl go head can I hear that back

yeaah 它的东西，你需要有原因当她离开摇摇***她离开了一半 18岁， 18岁和她的18岁生日，他发现这不是他我现在是不是sayin她一条金挖掘机但她不是messin束手无策，没有发生我现在是不是sayin她一条金挖掘机但她不是messin束手无策，没有发生趴下去的女孩头部着手趴下去的女孩头部着手趴下去的女孩头部着手趴下去的女孩头部 [诗3： ] 我现在是不是sayin你一个黄金挖出你的需要您不希望亚dude吸烟，但他无法购买杂草你失控，吃和他cannot支付yall cannot离开还有的菜在后面，他的宝贝，卷起他的衣袖但为什么yall washin观赏他他经历了使它成为一个奔驰摆脱这种datson 他认为，野心婴儿看在他眼中这个星期，他moppin floorz下周的薯条因此，坚持在他身旁我知道这dude的ballin ，但雅这就是尼斯和他们保持了callin和tryin 但你留在女童的权利但是，当你得到关于他离开摇摇***一个白人女生趴下去的女孩头部着手趴下去的女孩头部着手趴下去的女孩头部着手趴下去的女孩头部

As the track space increasing, the holding power which flexible holding parts act on sugarcane is dropping off. As the canvas layers and length of flexible holding part increasing, the track space is also increased when flexible holding parts act on sugarcane same holding power. As the length of flexible holding part increasing, the rate of slope of holding power following the track space to change would be decreased, so holding power would vary slowly. The holding power has a better linear relationship with the track space. Holding sugarcane stalk on knot or not on knot, sugarcane stalk having leaves or without leaves, the holding power would have not significant difference. Considering the structure of device and stress of sugarcane, 4-layers canvas conveyer belt was used as flexible holding part, while its length is 120mm, 160mm, or 200mm, the corresponding maximum track space is 135mm, 183mm, or 235mm. Experimental investigation of sugarcane windrowing was done on the arc-track-type flexible holding and conveying test mechanism.

随着轨道间距的增大，柔性夹持元件施加给甘蔗的夹持力逐渐减少；施加给甘蔗相同的夹持力，随着柔性夹持元件帆布帘层数和长度的增加，对应的轨道间距增加；随着柔性夹持元件长度的增大，柔性夹持元件施加给甘蔗的夹持力随轨道间距变化的斜率减小，夹持力大小的变化越缓慢；柔性夹持元件提供的夹持力与轨道间距均呈线性关系；柔性夹持元件夹在甘蔗节上还是不夹在节上，甘蔗有叶还是无叶，其施加给甘蔗的夹持力无显著差异；从夹持输送装置结构以及甘蔗的受力情况来考虑，选择4层帆布帘输送带作为柔性夹持元件更能平稳、柔和地夹持输送甘蔗，4层帆布帘120mm、160mm、200mm长的柔性夹持元件夹持甘蔗所需最大轨道间距为135mm 、183mm、235mm。

But this is impossible, as long as it is engaging in a market economy, there are risks in any operation.

但是，这是不可能的，只要是搞市场经济，是有风险的任何行动。

We're on the same wavelength.

我们是同道中人。