水下隧道建设项目在中国三亚为海南自由贸易港取得进展。 Underwater tunnel construction project advances in Sanya, China, for Hainan Free Trade Port.
Sanya河河口通道项目是中国三亚第一个水下隧道,正在中国铁路第20局小组下推进。 The Sanya River estuary passage project, the first underwater tunnel in Sanya, China, is advancing under the China Railway 20th Bureau Group. 该隧道旨在改善城市布局,支持海南自由贸易港,将加强交通,缓解交通堵塞。 Aimed at improving urban layout and supporting the Hainan Free Trade Port, the tunnel will enhance transportation and alleviate traffic congestion. 正在通过无人机摄影记录进展情况,展示海南省的建设努力。 Progress is being documented through drone photography, showcasing the construction efforts in Hainan Province.