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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 Alternative air source ： ウィキペディア英語版 Alternative air source In underwater diving, an alternative air source, or more generally alternative breathing gas source, is a secondary supply of air or other breathing gas used by the diver in an emergency. Examples include an auxiliary demand valve, a pony bottle and bailout bottle.〔 An alternative air source may be fully redundant (completely independent of any part of the main air supply system) or non-redundant, if it can be compromised by any failure of the main air supply. From the diver's point of view, air supplied by a buddy or rescue diver is fully redundant, as it is unaffected by the diver's own air supply in any way, but a second regulator on a double cylinder valve or a secondary demand valve (octopus) is not redundant to the diver carrying it, as it is attached to his or her main air supply. Decompression gas can be considered a redundant gas supply only when the risk of breathing it at the current depth is acceptable. ==Fully redundant alternative air sources== These are alternative sources of breathing gas which are independent of the main gas supply used by the diver. The main gas supply in the case of scuba is usually the back gas set (open circuit scuba cylinders or rebreather), and in surface supplied diving, the surface gas supplied via the diver's umbilical. 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「Alternative air source」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.