"The concrete is cracking on some of the railway structures and bridges, forming a hidden danger to the railway line quality."

由于鐵路線的部分地段的路基和橋梁出現(xiàn)裂縫偷国产乱人伦精品一区二区，形成了鐵路安全隱患五月天天色图。

A controllable railway vehicle detent is used to stop sliding vehicles in railway station. In order to save energy, energy recycle technology is employed.

鐵道車輛可控停車器的功用是對站場溜放的貨車實施制動，使其在規(guī)定的距離內(nèi)停車曰韩三级精品。

The model railway exhibition offered most of the German parties the opportunity to design their ideal diorama, which would be integrated in the huge model railway.

此次展覽為德國多個團體提供了按自己的理念設(shè)計立體模型的機會av国模，最終這些作品將被整合成一個巨大的鐵路模型。

The company is located in Jiangsu Province, stainless steel multi-billion dollar industrial concentration area, east new long Railway, coastal high-speed, 204 National Road, the south Nanjing Kai railway, 328 State Road, westsalt, high-speed, direct access to Highway 229 companies, transportation is very convenient.

公司座落在江蘇省千億元不銹鋼產(chǎn)業(yè)集中區(qū)欧美一级A片欧美性视频，東鄰新長鐵路六月色色网、沿海高速、204國道一级黄片美女的奶水，南連寧啟鐵路欧州色色、328國道，西接寧靖鹽高速国产综合精品久久亚洲， 229省道直達公司日韩精品福利资源网站大全免费，交通運輸十分便利。

According to 2008 adjusted middle and long-term railway development plan, the national railway operating mileage will reach 120,000 kilometers by 2020, in which the rate of double-track rate and electrified rate will reach above 50% and 60% separately.

根據(jù)2008年調(diào)整后的中長期鐵路發(fā)展規(guī)劃黄色视频一级片黄色，到2020年欧美特级黄色视频播放，全國鐵路營業(yè)里程將達到12萬公里以上，復線率和電化率將分別達到50%和60%以上网友自拍第1页。

Qingzhou Haitian Dredging Machine Factory is located in Qingzhou city of Shandong province, a famous tourism and industrialized city, adjacent to 309 national highway, Jiqing expressway, Jiaoji railway and Yanglin railway. Therefore, here transportation is convenient.

青州市海天挖沙機械廠位于全國聞名的旅游城市和工業(yè)化城市的山東省青州市婷婷五月丁香国产，309國道，濟青高速公路欧美日韩三级片、膠濟鐵路羊臨鐵路橫貫東西南北极黄网站，交通十分方便，是專業(yè)研究開發(fā)大玖玖伊人、中型挖掘機械的企業(yè)国产一级婬片!A片AAA毛片男男?。

The results show that the bedrock moves 8 m en masse when the epicenter is located near the railway,while the Quaternary loose sediments and groundsill are deformed.The horizontal diaplacement of the Quaternary close to the fault is obviously smaller from above downward,while the rails and groundsill show successive left-lateral crooked deformation for about 25 m.There occur a NE-trending tensional graben and a NW-trending seismic drumlin on the east and west sides of the railway respectively.

結(jié)果表明，震中位于鐵路線附近時A级毛片观看免费，基巖整體移動国产一区二区狠干，而第四紀松散層和道床則發(fā)生了變形，靠近斷裂帶附近的第四系自下而上水平位移明顯減小xxxx黄色小视频，而鐵軌和道床沒有明顯的斷錯超碰97人人操人人，表現(xiàn)為長度約為25m的連續(xù)左旋彎曲變形；在鐵路東人人爽爽人日人干人日人、西兩側(cè)形成NE向的張裂陷和NW向的地震鼓包AV无码A在线观看奶水。

The electrization of railway can improve the ability of transportation and reform the railway works, and be in favor of carrying out the distribution with reason of transit、reducing the cost of business欧美一级片电影在线观看、protecting the environments also.

鐵路電氣化可以提高鐵路運輸能力爱搞免费、改進鐵路運營，同時也有利于實現(xiàn)資源的合理分配天天做天天爱天天爽天天综合、降低運營成本久久影院A片AAA毛片、保護生態(tài)環(huán)境等。

First, the dissertation summarizes the properties, developing state and application fields of BLDCM, then its fundmental structure; operation principle and control strategy is also presented. On the base of roundly analyzing all kinds of the drive motor in electromotion type railway switch, BLDCM is proposed to replace the formerly traditional DC motor in railway switch. Second, the whole design scheme and key technology of control system is put forward based on analyse of the technical parameters and requirements.

首先毛片基地在线视频无码，論文介紹了無刷直流電動機的特點国产精品久久久久影院老司、發(fā)展和應用概況午夜福利黄色片，分析了稀土永磁無刷直流電機系統(tǒng)的基本構(gòu)成、工作原理和控制方法人人摸日操；在對目前各種電動轉(zhuǎn)轍機驅(qū)動電機分析的基礎(chǔ)上最新男人网址，提出將稀土永磁無刷直流電機用于鐵路轉(zhuǎn)轍機，以替換原有的串勵有刷直流電動機99熟妇。

Since the first subway was built in the world, there has been prejudice against the urban rapid railway, especially the elevated railway, mainly because they often affect the urban environment and urban sights.

中文摘要：自世界上擁有第一條地鐵以來日韩精品痴汉无码视频网站，人們對城市快速軌道地上線特別是高架線存在著偏見，主要是在對城市環(huán)境和城市景觀影響方面18岁黄色网站在线观看。