图片新闻【226】上海磁悬浮列车通车

A magnetic levitation or maglev train runs on the test rail in Shanghai, China , Monday, Dec. 30, 2002. The train has reportedly reached speeds of 250 mph along a 19-mile-long track linking Shanghai's new financial district and airport.It travels faster than conventional trains because it floats on air-- held a few fractions of an inch above its rails by powerful opposing magnets. (AP Photo/Ren Long, Xinhua)

词汇：

magnetic adj.磁的, 有磁性的, 有吸引力的

levitation n.轻轻浮起, 升在空中

conventional adj.惯例的, 常规的, 习俗的, 传统的

float vi.浮动, 飘浮,摇摆, 漂浮

opposing 反作用的, 反向的