20 0 4年3月2 9日至31日,中国煤炭学会水力采煤专业委员会在昆明召开了2 0 0 4年年会及技术研讨会。与会人员中既有专业委员会中的专兼职工作人员、研究院所的科研人员,也有来自煤矿生产一线的生产技术与管理人员,共计2 0余人。会议当中,大家争先恐后踊跃发言,就水力采煤生产技 From March 29 to March 31, 2014, the Hydraulic Coal Mining Professional Committee of China Coal Society held the 2004 Annual Meeting and Technical Seminar in Kunming. The participants in both the professional committees in part-time staff, research institutes and researchers, but also from coal production front-line production technology and management personnel, a total of more than 20 people. During the meeting, everyone vying to speak enthusiastically about the hydraulic coal production technology