VOA慢速英语(翻译+字幕+讲解):克服重力的磁悬浮滑板
日期:2014-12-30 13:08

(单词翻译:单击)

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听力文本

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From VOA Learning English, this is the Technology Report.

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Can you imagine riding around the streets of your hometown on a skateboard without wheels? In the late 1980s, film director Robert Zemeckis showed a skateboard floating above the ground in his movie Back To The Future Part II.

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Now, an American company, Arx Pax, has moved the idea for such a device from a futuristic dream to reality. The new product operates on the same rules that govern magnetism.

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When similarly charged ends of two magnets get close together, they repel or push away from each other. That force can make an object levitate or hover in space.

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Since the 1980s, levitation has been used on trains in Europe, Japan and China. These maglev trains, seem to float above the ground. There is no contact between the bottom of the cars and the surface of the train track. Maglev trains are almost noiseless and can move very fast.

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Greg Henderson says the same technology can make anything hover, even buildings.

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"Imagine there's an earthquake and the early warning turns on the warning systems and the supports fall away as the building starts to hover. The shaking stops, the supports return, and no one in that room or in that building ever knew there was an earthquake."

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Greg Henderson's company created the first maglev hoverboard, called Hendo. It can hold a single person about 2.5 centimeters above a metal surface.

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"We are creating a magnetic field, and then through a method of induction, that's part of our secret sauce, we are creating a secondary and equal magnetic field in this conductive surface."

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Batteries provide the electricity needed to power Hendo's four engines. However, the batteries only last for a short time. But design engineer Kyle O'Neil says they last long enough for experienced skateboarders to learn how to control the hoverboard.

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"Some people say it's like snowboarding. Some say it's how they imagined a hoverboard is supposed to be, which is kind of an interesting response because no one's ever ridden one before."

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The creators of Hendo say they do not expect to see their hoverboard on the streets anytime soon. The reason: it only works on a metal-covered surface. But they say larger hover engines could be used to transport containers in storerooms.

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For now, their dream is to build a recreation area where anyone can take a ride on a hoverboard.

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And that's the VOA Learning English Technology Report. For more technology stories, go to our website learningenglish.voanews.com. Give us a like on the VOA Learning English Facebook page. Follow us on Twitter at VOA Learning English. You can also watch vedios on the VOA Learning English YouTube channel. I'm Jonathan Evans.

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词汇解释

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1.skateboard n. 溜冰板 vi. 用滑板滑行

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Elbow pads and knee pads are essential on a skateboard.
滑滑板时带护肘和护膝是必要的M~Aq28oeeg@G;

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2.magnetism n. 磁性,磁力;磁学;吸引力

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There was no doubting the animal magnetism of the man.
那个男人的动物性魅力无可置疑udT4bjBRVx4FHhMx&w

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3.levitate vt. 使轻轻浮起;使飘浮空中 vi. 轻轻浮起;飘浮空中

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He has claimed he can levitate.
他声称他能飘向空中H|;sNroli9M5

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4.induction n. [电磁] 感应;归纳法;感应现象;入门培训,入职仪式

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Every induction is a speculation.
所有归纳推理都是一种猜测npluTWJ6AgTavN

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内容解析

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1.Some say it's how they imagined a hoverboard is supposed to be, which is kind of an interesting response because no one's ever ridden one before.

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supposed to be 本应如此

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The government, the executive and the judi-ciary are supposed to be separate.
政府、行政部门和司法部门应该彼此分离#4,C(Hs*IgN!,ihT-|+i

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They are supposed to be here at about half four.
他们应该在4点半左右到达这里m71D]U(fM3+

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参考译文

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这里是美国之音慢速英语科技报道EV~Yt6+|14cvW-x_=H

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你能想象在你家乡的街道上踩着没有轮子的滑板吗?在20世纪80年代末,电影导演罗伯特·泽米吉斯在他的影片《回到未来2》中展示了漂浮在地面的滑板r65@isf]8dUkY

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现在,美国公司Arx Pax已将这种设备从未来主义理念转化为现实,这款新产品依据磁性原理来工作=cjL2bzjpFs3M;z

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当两块磁铁的同极接近时,它们就会相互排斥w[6cW4bH%Vn2。这种力使得物体漂浮或悬在空中VAS[vxgvg6

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自从20世纪80年代起,磁悬浮就开始用在欧洲、日本和中国的列车上-N^Jpk9oM4xEs6NKy[j。这种磁悬浮列车看上去似乎漂浮在地面上,车厢底部和列车轨道之间没有接触,磁悬浮列车几乎无声,速度很快+jpeE&udP,G0c(%LFl7*

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格雷格·亨德森说同样的技术可以使得保护建筑物在内的一切物体漂浮起来CC;KpH;WTA@p|kFEHmoD

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“想象一下出现地震,早期预警打开警报系统,建筑物的底座抽回去,建筑物开始悬浮=%5tqm)g40dIyvl。当振动停止时,底座归位,房间里或建筑物理没有人知道发生过地震rT0.C8KbXJxel。”

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格雷格·亨德森的公司开发了第一个磁悬浮滑板,名叫Hendo,它能将人悬浮到金属表面的2.5厘米高度,|65B^yZsygXK

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“我们在制造一个磁场,然后通过电磁感应法,在这个导电平面制造次一级的平衡磁场,这就是我们的秘籍之一zyL,13)w*ynhU。”

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Hendo四个引擎所需的电力由电池提供,然而,电池只能持续很短的时间H9I|zT9w1Re1hyoUv。但设计工程师凯尔·奥尼尔说,这么长的时间对于有经验的滑板手来说掌握如何控制滑板已经足够YT,84@,8gktZS

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“有人说它像滑雪板,有人说他们想象的漂浮滑板就是这样的,这是一种有趣的反馈,因为之前没有人滑过这样的滑板|stUxc&@6[X-,*N。”

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Hendo的开发者说他们并不指望这种漂浮滑板能很快出现在大街小巷,原因是这种滑板只能在金属表面上工作,但他们说更大的悬浮引擎将被用来运输仓库中的集装箱K0LTf!D7k;c+|D

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就目前来说,他们的目标是建造一个休闲区,让大家能在上面玩悬浮滑板oII;1!3JK(ifsCI-#

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这就是美国之音慢速英语科技报道,登陆learningenglish.voanews.com获得更多科技报道,在美国之音慢速英语的脸书上给我们点赞,关注我们的推特账户,你还可以在YouTube频道观看我们的视频节目,我是乔纳森·伊万斯Hh&gk)DjJuWIosF-3Sl

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