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Chinese President Xi Jinping has sent a congratulatory letter to the Science and Technology Daily on the occasion of the 40th anniversary of its founding.
On August 1, the world's first boring and blasting machine developed by Chinese researchers officially rolled off the production line in Wuhan. This innovative piece of equipment combines the advantages of the two mainstream construction methods — tunnel boring machines and the drill-and-blast method — to provide a brand-new technical solution for the construction of long tunnels in complex geological conditions.