Undersea subway project completed in east China

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A 2,760-meter-long undersea subway tunnel has been completed in east China's Xiamen City on March 21. During the construction, 220 cubic meters of rocks were blasted, and more than 1,000 cubic meters of stones were salvaged. The tunnel is part of Xiamen's Subway Line 2, which is expected to go into trial operation by the end of 2019.