system mechanization mining
system mechanization mining 综放开采 System mechanization mining face 综采工作面 ; 综采工作面 ..
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system mechanization mining
系统机械化开采
以上为机器翻译结果，长、整句建议使用 人工翻译 。
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Through surmounting solves the technology knotty problem of retrieving coal column of mining area with the system mechanization mining technique. By application in mining process the effect is better.
通过攻关，解决了综采工艺回收盘区煤柱的技术难题，经过在开采过程中的应用，效果良好。
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