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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 Damtshaa diamond mine ： ウィキペディア英語版 Damtshaa diamond mine The Damtshaa diamond mine is a diamond mine located in Botswana about west of the city of Francistown. Damtshaa, meaning "water for a tortoise", is owned by Debswana, a partnership between the De Beers company and the government of Botswana. It is the newest of four mines operated by the company, officially opening on October 25, 2003. Damtshaa is of open pit construction, located on top of four distinct kimberlite pipes of varying ore grade. The mine is forecast to produce about 5 million carats (1,000 kg) of diamond from 39 million tons of ore over the projected 31 year life of the mine. In 2003, the Damtshaa mine produced 292,000 carats (58.4 kg). Recovered ore grade averages about 0.06 carats (12 mg) per metric ton. The ore produced at Damtshaa is processed at a processing plant at its sister mine, the Orapa diamond mine, about distant. The Damtshaa mine is also managed from the Orapa mine, and is included in Orapa's and Letlhakane's safety and environmental programs, meaning that Damtshaa is also ISO 14001 certified. Damtshaa employs around 180 people. ==References== *(【引用サイトリンク】title=Debswana official website ) 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「Damtshaa diamond mine」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.