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概要Outline1.我国废弃煤矿现状2.国外废弃煤矿瓦斯开发利用3.废弃煤矿瓦斯开发利用关键技术4.结论与建议1.Current situations of abandoned coal mine closure in China 2.Polices and Technology of AMM development and utilization in foreign courtiers3.Key technology for AMM development and utilization 4.Conclusion and suggestions