狂砸3000億建跨渤海隧道,連通大連和煙台,真空高鐵時代到來
Smashing 300 billion yuan to build a tunnel across the Bohai Sea, connecting Dalian and Yantai, the era of vacuum high-speed rail has arrived.
大連灣5.1公里長海底隧道通車 耐用百年 技術獨步全球
World Journal 2023.05.02
World Journal 2023.05.02
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