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| 1 | Basic Guidelines for the Development and Use of Ports and the Development of Designated Seaways | 港湾の開発・利用並びに開発保全航路の開発に関する基本指針 | |||
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| 1 | Basic Guidelines for the Development and Use of Ports and the Development of Designated Seaways | 港湾の開発・利用並びに開発保全航路の開発に関する基本指針 | |||