Water-preserving mining method for close-distance coal seam group

• 1. 一种近距离煤层群首采面初采期防瓦斯超限的开采方法 [P] . 中国专利： CN113338930A . 2021-09-03
• 2. 近距离煤层群井下采选充协同开采方法 [P] . 中国专利： CN109162714A . 2019-01-08
• 3. Water-preserving mining method for close-distance coal seam group [P] . AU2015358166A1 . 2016-09-08

  机译： 近距离煤层群的保水开采方法

• 4. WATER-PRESERVING MINING METHOD FOR CLOSE-DISTANCE COAL SEAM GROUP [P] . 世界知识产权组织专利： WO2016086602A1 . 2016-06-09

  机译： 近距离煤层群的保水开采方法

• 5. System of headings in the hard coal deep mine and method of exploitation in the hard coal deep mine for mining of coal seams deposited at the depth below the lowest mining floor [P] . PL224556B1 . 2017-01-31

  机译： 硬煤深煤矿的掘进系统和硬煤深煤矿的开采方法，用于开采沉积在最低开采层以下的煤层

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