my first ride on a train教案_0

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1、MyFirstRideonaTrain教案FirstRidenaTrain教案dule3　FirstRidenaTrain话题导入对于人类说,地球显得越越小;人与人的距离是那样的近,这得益于科学技术的发展,一代又一代高速、舒适的交通工具走进我们的生活中,使我们的行动更加轻松便捷……背景知识磁悬浮列车用电磁力将列车浮起而取消轮轨,采用长定子同步直流电机将电供至地面线圈,驱动列车高速行驶。磁悬浮列车主要依靠电磁力实现传统铁路中的支承、导向、牵引和制动功能。列车在运行过程中,与轨道保持一厘米左右距离,处于一种“若即若离”的状态。由于避免了与轨道的直接接触,行驶速度也大大提高,其正常的运营

2、速度可以达到每小时430千米。世界上第一列磁悬浮列车小型模型1969年在德国出现,日本是三年后研制成功的。仅仅十年后的1979年,磁悬浮列车技术就创造了17千米／小时的速度记录。引入型阅读Train:Inhina,railahasbeennefthestiprtanttransprtatinethdssine100earsagiththespeedf140/hn,railanethasspreadthrughuthinaanpeplehserailahenthetravelutside,beausethespeedisfasthilethestisparativelllassesnh

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