The subway will be formed by 92 prefabricated segments., and a prefabrication yard is set up near the launching shaft for easier transportation of segments.
The subway will be formed by 92 prefabricated segments., and a prefabrication yard is set up near the launching shaft for easier transportation of segments.
The subway will be formed by 92 prefabricated segments., and a prefabrication yard is set up near the launching shaft for easier transportation of segments.
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