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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 Minimum metal mine ： ウィキペディア英語版 Minimum metal mine A minimum metal mine is a land mine that is designed to use the smallest amount of metal possible in its construction.〔(【引用サイトリンク】title=AZERBAIJAN MINE ACTION STANDARDS )〕 Both minimum metal anti-tank and anti-personnel mines exist. Some designs contain virtually no metal at all (less than a gram). Typically this is achieved by encasing the explosive charge in a plastic, wooden, or glass body, with metallic components limited to the few small parts that can not easily be made from other materials, such as the spring, striker tip, and shear wire. Minimum metal mines are extremely difficult to detect using conventional metal mine detectors and usually require modern techniques, such as robotic ''Multi Period Sensing'' (MPS) equipment, to identify, but it is still too difficult to find non-metallic mines. These techniques are usually restricted to well-funded international mine clearing organizations and major militaries, making minimum metal mines especially pernicious where they are encountered.〔(【引用サイトリンク】title=Mine Detection Performance Comparison between Manual Sweeping and Teleoperated Robotic System )〕 ==Examples== Early examples included the German Glasmine 43, Schu-mine 42 and Topfmine used during World War II. These designs were either difficult or impossible to find using 1940s metal detectors. Many different types of minimum metal mines have been produced in various countries over the years. Relatively modern examples include the antitank mines M19 (USA, less than 3g of metal) and TMA-3 (Serbia, no metal) and the anti-personnel mines PRB M-409 (Belgium, less than 1g) and the PMA-2 or PMA-3 Serbia, (approx 1g non-magnetic) and VS-50 (Italy). Since the 1970s and until 1993 (when the country enacted a national landmines manufacturing ban, four years before signing the Ottawa Treaty) Italy became a world leader in the manufacture of minimum metal mines; the three main Italian landmine manufacturers were mostly producing minimum-metal by the early 1980s. ''Valsella Meccanotecnica SpA'' manufactured the VS-50 and VS-Mk2. ''Misar SpA'' produced the SB-81 and SB-33, and ''Tecnovar Italiana SpA'' produced the TS-50, TC/3.6 and TC/6 mines. 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「Minimum metal 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.