CHANGSHA -- China's self-developed tunnel boring machine with the biggest diameter has been rolled off the production line on Thursday. The machine, with a maximum excavation diameter of 16.64 meters, ...
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CHANGSHA, Oct. 31 (Xinhua) -- China's self-developed tunnel boring machine with the biggest diameter has been rolled off the production line on Thursday. The machine, with a maximum excavation ...
CHANGSHA -- China's self-developed tunnel boring machine with the biggest diameter has been rolled off the production line on Thursday. The machine, with a maximum excavation diameter of 16.64 ...
A large-diameter tunnel boring machine (TBM) with a record-breaking excavation diameter of 16.64 meters rolled off the production line in Changsha, Central China's Hunan Province on Thursday.
CHANGSHA, Oct. 31 (Xinhua) -- China's self-developed tunnel boring machine with the biggest diameter has been rolled off the production line on Thursday. The machine, with a maximum excavation ...