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今年3月,我国京九铁路南昌—九江和南昌—赣州的路段上出现了2列漂亮的流线型动车组列车。依其外观形象,它被誉为“子弹头”。 那么,这动车组是怎么回事呢?动车就是在钢轨上运送旅客、行李、货物或公务用的自动行走带动力的轨道车辆。也就是说,以往的蒸汽或内燃机火车都是带动力的机车(火车头)挂上一组拖车(车厢)。而动车则像汽车那样,将车头(动车部分)与车厢合为一体。而由2辆这样的动车或1辆动车和1辆以上的拖车
In March of this year, two beautiful streamlined EMU trains appeared on the sections of Beijing-Kowloon Railway Nanchang-Jiujiang and Nanchang-Ganzhou. According to the appearance of its image, it is known as “bullet.” So, what is going on with the EMU? A motor car is a self-propelled rail vehicle that carries passengers, luggage, cargo or public services on rails. That is to say, the steam locomotives or diesel locomotives used to be powered locomotives (locomotives) are hung on a group of trailers (carriages). The motor car is the same as the car, the front (moving part) with the compartment into one. By 2 such a motor car or a motor car and more than 1 trailer