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Tube railway:Â Tube railways are defined as the atmospheric railway which provides an air pressure for the propulsion of the train. In this type of railway system the underground railways are provided at the depth of 25 meter. The rail line is constructed under a tubular tunnel that why called as tubRead more
Tube railway:Â Tube railways are defined as the atmospheric railway which provides an air pressure for the propulsion of the train. In this type of railway system the underground railways are provided at the depth of 25 meter. The rail line is constructed under a tubular tunnel that why called as tube railways.
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