翻訳と辞書 Words near each other ・ Safety in Australia ・ Safety in NASCAR ・ Safety in Numbers ・ Safety in numbers ・ Safety in Numbers (1930 film) ・ Safety in Numbers (1938 film) ・ Safety in Numbers (Crack the Sky album) ・ Safety in Numbers (David Van Tieghem album) ・ Safety in Numbers (Margaret Urlich album) ・ Safety in Numbers (Umphrey's McGee album) ・ Safety instrumented system ・ Safety integrity level ・ Safety Investigation Authority ・ Safety Island ・ Safety Jackpot ・ Safety lamp ・ Safety Last! ・ Safety life cycle ・ Safety management systems ・ Safety monitoring ・ Safety Net ・ Safety net ・ Safety net hospital ・ Safety Net Records ・ Safety Network International e.V. ・ Safety Not Guaranteed ・ Safety of electronic cigarettes ・ Safety of emergency medical services flights ・ Safety of high-energy particle collision experiments ・ Safety of the Queen, etc. Act 1584 Dictionary Lists mini英和辞書 mini和英辞書 Webster 1913 Latin-English FOLDOC Wikipedia English ウィキペディア

翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Safety lamp ： ウィキペディア英語版 Safety lamp A safety lamp is any of several types of lamp that provides illumination in coal mines and is designed to operate in air that may contain coal dust or gases both of which are potentially flammable or explosive. Until the development of effective electric lamps in the early 1900s miners used flame lamps to provide illumination. Open flame lamps could ignite flammable gases which collected in mines, causing explosions and so safety lamps were developed to enclose the flame and prevent it from igniting the surrounding atmosphere. Flame safety lamps have been replaced in mining with sealed explosion-proof electric lights. ==Background== 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「Safety lamp」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.