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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 Nitrary ： ウィキペディア英語版 Nitrary A nitrary is a place of production of potassium nitrate or saltpetre used primarily for the manufacture of gunpowder. The saltpetre occurs naturally in certain places like the "Caves of Salnitre" (Collbató) known since the Neolithic –Cova del rat penat– the guano (bat excrements) deposited over thousands of years became saltpetre after being leached by the action of meteoric water. ==Manufacture == The process involved burial of excrements (human or animal) in the fields prepared for that purpose beside the nitraries, watering them and waiting until the leaching process did its job; after a certain time, operators gathered the saltpetre that "came out" to the ground surface by efflorescence. Then they transported it to be concentrated by ebullition in the boiler plant. 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「Nitrary」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.