最終更新日:2022/12/24
Able to advance up to seven metres a day, the TBM will be boring far enough underground to be non-disruptive to the railway above, although any disturbance will be closely monitored.
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Able to advance up to seven metres a day, the TBM will be boring far enough underground to be non-disruptive to the railway above, although any disturbance will be closely monitored.