Electric trains have now taken the place of steam ones

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• 英语翻译On most modern railways,detection of the train’s position on the line and signal changing are done automatically and colored-light signals have largely taken the place of mechanical ones.The light signals usually mean:Green:proceed at line speed.Yellow:warning-the next signal is at red.RRailway signaling differs from the traffic lights used on roads in that trains cannot stop quickly; for example,a train traveling at 160 km/h (100 mile/h) would ne
• 强者来翻译,看看你水平（勿用网络翻译工具等）On most modern railways, detection of the train’s position on the line and signal changing are done automatically and colored-light signals have largely taken the place of mechanical ones. The light signals usually mean: Green: proceed at line speed. Yellow: warning-the next signal is at red. RRailway signaling differs from the traffic lights used on roads in that trains cannot stop quickly; for example, a train traveling at 160
• Electric trains have now taken the place of steam ones
• Electric trains have taken the place of steam ones能够解释一下ones吗
• Electric trains have now taken the place of steam ones
• Electric trains have taken the place of steam ones能够解释一下ones吗
• be long for /to 有什么区别
• electric trains steam trains in Japan