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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Ambrose Channel pilot cable ： ウィキペディア英語版 Ambrose Channel pilot cable The Ambrose Channel pilot cable, also called the Ambrose Channel leader cable, was a cable laid in Ambrose Channel at the entrance to the Port of New York and New Jersey that provided an audio tone for guiding ships in and out of port at times of low visibility. The cable was laid during 1919 and 1920; it had been removed from the Channel and replaced by wireless technology by the end of the 1920s. ==Background== Ambrose Channel is the main shipping channel in and out of the Port of New York and New Jersey, making it the only means of accessing an important commercial port. Delays posed a major problem for shipping en route to New York City, and bad weather could close the Channel for days. Ships were forced to wait at the Harbor's entrance for conditions to clear. These delays cost shipping companies substantial amounts of money, with each ship costing between $500 and $4000 per hour it was stopped (roughly $5,700 to $46,000 in 2013 dollars).〔.〕 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「Ambrose Channel pilot cable」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.