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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 Baptist well drilling ： ウィキペディア英語版 Baptist well drilling Baptist well drilling is a very simple, manual method to drill water wells. It is meant to be applied by very poor villagers in developing countries, who quickly learn how to drill their wells themselves. The Baptist drilling rig can be built in any ordinary arc welding workshop and materials for a basic version costs about 150 US Dollars (2006 prices). In suitable conditions, boreholes over 100 m deep have been drilled with this method. ==History== The method was developed by Terry Waller, a North American Baptist missionary in Africa and Bolivia. It applies some of the same principles used in mechanized commercial well drilling, but does so using the simplest, most available and cheapest possible materials. 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「Baptist well drilling」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.