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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 Guard rails (railroad) ： ウィキペディア英語版 Guard rails (railroad) In railroad use, guard rails are placed parallel to regular running rail along areas of restrictive clearance, such as a bridge, trestle, or tunnel. These have the effect of keeping the wheels of rolling stock in alignment in case of derailment. It also helps to minimize damage to the structure and allow easier post-accident cleanup. ==History== Although there has always been some form of guard rails as long as there have been trains, the precursor of the guard rails we have today were invented in Laconia, New Hampshire by Gorham B. Ames in 1894.〔(【引用サイトリンク】 title= U.S. patent )〕 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「Guard rails (railroad)」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.