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推定300トン超の浮力、高さ13mまで鋼管押し上げたか 地下の水圧差と軟弱地盤が影響(産経新聞) - Yahoo!ニュース -
https://news.yahoo.co.jp/articles/0f1b4a25515249b2411940887951bbf129952797
へぇぇぇぇ
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推定300トン超の浮力、高さ13mまで鋼管押し上げたか 地下の水圧差と軟弱地盤が影響(産経新聞) - Yahoo!ニュース -
https://news.yahoo.co.jp/articles/0f1b4a25515249b2411940887951bbf129952797
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