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着重论述了我国煤炭工业存在的实际情况，强调指出高产高效矿井的建设应适合我国的国情、矿情，要有自己的特色。
Emphatically discusses the actual situation of China’s coal industry, emphasizing that the construction of high yield and high efficiency mine should be suitable for China’s national conditions, mine conditions, have their own characteristics.