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Cable length : ウィキペディア英語版 | Cable length
A cable length or cable's length is a nautical unit of measure equal to one tenth of a nautical mile or approximately 100 fathoms. The unit is named after the length of a ship's anchor cable in the age of sail. The definition varies: * International: nautical mile, or 185.2 m * Imperial (Admiralty): Admiralty mile, or 608 ft (185.32 m), about 101 fathoms * *The traditional British fathom varied from 5½ feet to 7 feet in the Merchant Navy. * U.S. customary (US Navy): 120 fathoms (720 feet, 219.456 m) ==References==
*. Also "fathom", from the same work. *.
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「Cable length」の詳細全文を読む
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