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用于引导列车进行进,避免产生碰撞与交通堵塞等问题。在铁轨上放置区间信号灯以创造“区间”。如果有一辆列车正占用当前区间,其他列车将无法进入区间所在的铁轨。警告:信号灯为单向运作!列车无法逆向行驶,因此如果要建造双向铁路,你需要在两个方向上都建造信号灯。
2x 钢管
1x 计算机