... three--position signal 三显示信号；三显示信号机 three-rail railway 双轨距铁路 three-rail track 三线式轨道 ...
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three-rail railway
三轨道铁路
以上为机器翻译结果，长、整句建议使用 人工翻译 。
Witnesses said, the 4 young men do not know where to climb up the railway, a train was passing by, will be one of the men involved in the rail, the other three is bumped to fly.
目击者说，这4名年轻男子不知从哪里爬上了铁路，一辆列车刚好经过，将其中一名男子卷入车轨，另外三人被撞飞。
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