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Portland Harbour : ウィキペディア英語版 | Portland Harbour
Portland Harbour is located beside the Isle of Portland, off Dorset, on the south coast of England. It is the second largest man-made harbour in the world,〔(【引用サイトリンク】 title=Portland Port - Shipping )〕 and the largest man-made harbour in Europe. It is naturally protected by Portland to the south, Chesil Beach to the west and mainland Dorset to the north.〔http://www.engineering-timelines.com/scripts/engineeringItem.asp?id=219〕 It consists of four breakwaters — two southern and two northern. These have a total length of 4.57 kilometres and enclose some 520 hectares. The initial southern breakwaters were built between 1849–72, while Portland Harbour occupied a Royal Navy base until 1995. ==History==
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Portland Harbour」の詳細全文を読む
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