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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 Ascending and descending (diving) ： ウィキペディア英語版 Ascending and descending (diving) In underwater diving, ascending and descending is done using strict protocols to avoid problems caused by the changes in ambient pressure and the hazards of obstacles near the surface or collision with vessels. Diver certification and accreditation organisations place importance on these protocols early in their diver training programmes.〔 The procedures vary depending on whether the diver is using scuba or surface supplied equipment. Scuba divers control their own descent and ascent rate, while surface supplied divers may control their own ascents and descents, or be lowered and lifted by the surface team, either by their umbilical, or on a diving stage or in a diving bell. ==Scuba diving== 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「Ascending and descending (diving)」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.