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Railway signal - Wikipedia, the free encyclopedia
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日期:2024-05-31
1 Application and positioning of signals 2 Aspects and indications 3 Signal forms 3.1 Mechanical signals 3.2 Colour light signals 3.3 Position light signals 3.4 Colour-position signals 4 Signal mounting 4.1 Post mounting 4.2 Gantry mounting 4.3 Ground mou...看更多