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厚煤层机械化开采先进技术与安全项目研讨会开幕词煤炭部原总工程师陈明和（一九九六年七月十七日）与会的领导、专家、学者、同仁们，女士们、先生们：我非常高兴地参加这次厚煤层机械化开采先进技术与安全项目研讨会。由联合国开发计划署（ＵＮＤＰ）援助的“ＣＰＲ／９...
Opening Ceremony of the Symposium on Advanced Technologies and Safety for Mechanized Mining of Thick Seams Opening Ceremony Chen Minghe, Chief Chief Engineer, Ministry of Coal Industry (July 17, 1996) Leaders, Experts, Scholars, Colleagues, Ladies and Gentlemen, I I am very happy to participate in this seminar on advanced technology and safety of thick coal seam mechanized mining. By the United Nations Development Program (UNDP) assistance "CPR / 9 ...