... 金属轨道 Rails of metal 金属铁路枕木 Railroad ties of metal 缆索铁道永久导轨用金属材料 Materials of metal for funicular railway permanent ways ...
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... 转车盘（铁道） Turntables [railways] 铁路用金属枕木 Railroad ties of metal 铁路货车用金属载量规杆 Loading gauge rods, of metal, for railway wagons ...
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