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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 Standard dimension ratio ： ウィキペディア英語版 Standard dimension ratio Standard dimension ratio (SDR) is a method of rating a pipe's durability against pressure. The standard dimension ratio describes the correlation between the pipe dimension and the thickness of the pipe wall.〔http://www.engineeringtoolbox.com/sdr-standard-dimension-ratio-d_318.html〕 Common nominations are SDR11, SDR17 and SDR34. Pipes with a lower SDR can withstand higher pressures. $SDR=\backslash frac$ $d\_o$ Pipe outside diameter $s$ Pipe wall thickness ==References== 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「Standard dimension ratio」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.