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燃化部于一九七四年二月二十七日至三月四日,在四川省南桐矿务局召开了“在无解放层条件下,利用水力冲孔防止煤与瓦斯突出试验”总结会议.煤炭科学研究院和四川省煤炭工业局受部委托与四川省科委、重庆市煤管局共同主持了这次会议.参加会议的有有关局矿、科研、院校等十八个单位的领导干部、工人、工程技术人员共89人.
From February 27 to March 4, 1974, the Bureau of Combustion and Combustion held the “Test on Preventing Coal and Gas Outburst by Hydraulic Punching” at Nantong Mining Bureau of Sichuan Province, Concluded the meeting .Coal Research Institute and the Sichuan Provincial Bureau of Coal Industry by the Ministry of entrusted with the Sichuan Provincial Science and Technology Commission, Chongqing City Coal Authority co-chaired the meeting. Attend the meeting there Bureau of mining, research, institutions and other eighteen The unit's leading cadres, workers, engineers and technicians a total of 89 people.