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Long Forties : ウィキペディア英語版 | Long Forties
Long Forties is an area of the northern North Sea that is fairly consistently forty fathoms (240 feet/73 metres) deep. Thus, on a nautical chart with depth shown in fathoms, a long area with many "40" notations can be seen. == Extent == Long Forties are located between the northeast coast of Scotland and the southwest coast of Norway, centred about 57°N 0°30′E; compare to the Broad Fourteens.
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「Long Forties」の詳細全文を読む
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