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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 B unit ： ウィキペディア英語版 B unit A B unit, in railroad terminology, is a locomotive unit (generally a diesel locomotive) which does not have a driving cab or crew compartment, and must therefore be controlled from another, coupled locomotive with a driving cab (an A unit). The terms booster unit and cabless are also used. The concept is largely confined to North America. Elsewhere, locomotives without driving cabs are rare. ==Controls== Some B units cannot be moved without a controlling unit attached, but most have some simple controls inside, and often a side window at that control station. For example, B unit versions of the EMD FT with conventional couplers had a fifth porthole-style window added on the right side only for the control station. Other models used existing windows. These controls enable a hostler to move the B-unit locomotive by itself in a yard or shops. (A hostler is an employee permitted to move locomotives within the confines of a yard or shops complex, but not on the main railroad.) B units without controls are generally semi-permanently coupled to controlling units. Sometimes, there is a terminology distinction between the types: a booster is a B unit with hostler controls, and a slave is a B unit without hostler controls. 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「B unit」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.