缆索铁道永久导轨用金属材料 Materials of metal for funicular railway permanent ways 铁路道叉 Railway points 铁路货车金属载量规杆 Loading gauge rods, of metal, for railway waggons ..
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... 铁路道叉 Railway points 铁路道叉 Points (Railway –) 铁路道岔 Switches (Railway –) ...
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铁路道叉 railway crossing
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