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もし潜水艦が沈没したら?海上自衛隊の潜水艦救難母艦「ちよだ」「ちはや」…その世界一の救難能力とは! http://blog.livedoor.jp/corez18c24-mili777/archives/47690708.html#PnoAjZj.twitter_tweet_box_count
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