Workers celebrate the completion of the tunnel boring machine (TBM) “Caiyun” in Kunming, capital of southwest China’s Yunnan province, Aug 1, 2017. The Chinese made TBM, which has a 9.03-meter cutter head, was completed in Kunming on Aug 1 and it will be used to drill a railway tunnel in the province.[Photo/Xinhua]
Photo taken on Aug 1, 2017 shows the tunnel boring machine (TBM) “Caiyun” in Kunming, capital of Southwest China’s Yunnan province.[Photo/Xinhua]
Photo taken on Aug 1, 2017 shows the tunnel boring machine (TBM) “Caiyun” in Kunming, capital of Southwest China’s Yunnan province. [Photo/Xinhua]
Photo taken on Aug 1, 2017 shows the tunnel boring machine (TBM) “Caiyun” in Kunming, capital of Southwest China’s Yunnan province.[Photo/Xinhua]
Photo taken on Aug 1, 2017 shows the tunnel boring machine (TBM) “Caiyun” in Kunming, capital of Southwest China’s Yunnan province.[Photo/Xinhua]
