采煤方法和回采工艺
Coal mining methods and recovery processes
以上为机器翻译结果，长、整句建议使用 人工翻译 。
实践证明，该采煤方法和回采工艺满足了该煤层的回采要求，得到了成功应用。
Practice has proved that the coal mining methods and technology to meet the recovery of the coal requirements have been successfully applied.
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