Underground tunnel infrastructure. Transport pipeline by Tunnel Boring Machine for electric train subway with engineer or technician control and ventilation pipe.

Underground tunnel infrastructure. Transport pipeline by Tunnel Boring Machine for electric train subway  with engineer or technician control and ventilation pipe.图片
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Underground tunnel infrastructure. Transport pipeline by Tunnel Boring Machine for electric train subway with engineer or technician control and ventilation pipe.
  • 素材ID:1399661584
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  • 格式:JPG
  • 作者:sornchai
  • 最大分辨率:5776 x 3851px
  • 最大输出:48.90 x 32.61cm (300dpi) | 203.76 x 135.85cm (72dpi)
关键词
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