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E-mail Xinhua, March 27, 2025
A construction worker from China Railway 14th Bureau Group Co., Ltd. checks the tool abrasion of the "Yongping" shield tunneling machine, in Shantou City, south China's Guangdong Province, on March 26, 2025. The Shantou Bay undersea tunnel, the world's first single-hole double-track undersea tunnel with a designed speed of 350 km per hour, was broken through on Wednesday. The 9,781-meter-long tunnel is a project of the Shantou-Shanwei high-speed railway. (Xinhua/Liu Dawei)
