青云翻译

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Summary of status of shield machine for tunnel excavation face stability, specifications of shield tunnel construction in the importance of maintaining excavation face stability.

The summary jumbo tunneling surface investigation into stability present situation, showed in the shield tunnel construction maintains the tunneling surface stable importance.

正在翻译，请等待...

Summary of status of shield machine for tunnel excavation face stability, specifications of shield tunnel construction in the importance of maintaining excavation face stability.