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You can feel the relative speed of train to the autocar when you sit on the train.

如果你坐在火车里，就能感觉火车和汽车的相对速度。

In order to study the negativesequence influence to regional power grid caused by autotransformer traction power supply system, formulas of NSeq current and threephase voltage imbalance were derived, based on current distribution analysis of AT traction power supply system and singlephase VVconfiguration train substation. Employing the "train diagram" method, the realtime voltageimbalance curve was obtained in a simulation study, as well as the factors that influence NSeq and some measures to restrain it.

为研究自耦变压器牵引供电系统对地区电网造成的负序影响，首先讨论了AT牵引供电系统、单相VV接线牵引变电站的电流分布，推导得出了负序电流、三相电压不平衡度的计算公式；然后结合"列车运行图法"开发了相应的仿真程序；最后通过一个实际算例，得到了实时电压不平衡度曲线，指出了负序大小的影响因素及相应措施。

The traditional Chinese pusher train in staggered formationwas developed to inlignated barge train in the course of specializa-tion of inland waterway transportation, which brought abouttangible economical benifit.

在河运的专业化进程中，我国特有的梭形顶推船队发展到分节驳顶推船队，明显提高了经济效监。2。

If you sit in a train, you would be able to feel the relative speed between the train and bus.

他的忠诚无可置疑。4。如果你坐在火车里，就能感觉火车和汽车的相对速度。

And the lords of the bedchamber took greater pains than ever, to appear holding up a train, although, in reality, there was no train to hold.

因此他摆出一副更骄傲的神气，他的内臣们跟在他后面走，手中托着一个并不存在的后裾。

Imagine the case of a train which comes to a halt in the middle of nowhere. The driver notices that he has lost all the brake pipe air so the emergency brake applied. After finding that the conductor has not stopped the train and no passenger alarm valves have been operated, he starts trying to find out the cause.

举个例子，一列车停在了线路的某一处，司机发现制动管里没有了空气，所以造成了紧急制动，确认不是列车员停下了列车，也不是旅客拉下了报警阀后，他开始试图寻找原因。

The first Chinese Railway train was operated in 1876, from Shanghai to Woosung (15 miles) nearly a quarter of a century after the first train in India was run in April 1853 between Bori Bunder and Thane 21miles

中国第一条铁路创建于1876年，上海到吴淞，15英里，比印度第一条铁路Bori Bunder到Thane，21英里1853年4月开始运行，晚了四分之一世纪。

The west 249 cave top Wei, besides drawing the sunk panel of lotus flower in the centre, things two sides draw A build Luo and rub the Buddhist nun pearl, north and south two sides draw Tung Wang Kung, Hsi Wang Mu drive dragon train, phoenix train go out.

西魏249窟顶部，除中心画莲花藻井外，东西两面画阿修罗与摩尼珠，南北两面画东王公、西王母驾龙车、凤车出行。

A Chunnel train doesn't have to squeeze all that air backward between train and tunnel wall.

火车行驶在这条隧道中时不必将所有的气体挤向车尾。

In 1972, 45 people were killed when an Illinois Central Gulf commuter train collided with another train in Chicago's South Side.

1972年10月30日，在芝加哥南部，一辆伊利诺斯的市郊火车与另一辆火车相撞，45人死亡。

The work of this paper is as follows: 1. Looking back the progressing history of the linear motor, introducing the features of the elevator driven by linear induction motor, radicating the topic of this paper "the digital frequency variable control of the elevator bi-side direct driven by linear induction motor". The research of this paper covers the conventional VVVF control, space vector based VVVF control, vector control and DTC.

本文主要开展了以下几个方面的工作： 1 回顾了直线电机发展历史，电机的驱动技术演变，特别是针对直线电机的驱动，简要介绍了直线感应电机驱动电梯的优点和不同结构类型，对传统的v／f控制，基于空间矢量法的v／f控制，矢量控制，和基于电压空间矢量的直接转矩控制进行了比较，确立了本课题的研究主题：直线感应电机双边直推式驱动电梯的全数字变频控制。

The article combines with the treatment of a superficial civil air defense work to introduce how the grouting method to improve the performance of the backfill soil.

文章从治理漂浮人防工事的角度提出了注浆技术在改善回填土性质方面的应用，并详细阐述了注浆技术的施工流程。