结合萍矿集团公司矿井普遍进入深部开采，安全生产条件日趋困难，生产成本居高不下，经济效益普遍低下的状况，开展煤炭地下气化项目有其重要的现实意义。

At present, the coal production was deep operation in Pingxiang coal Industry Group co., so the safety production condition is difficult day by day, the production cost is increased and economic...

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