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六机部首次液压技术经验交流会,于1978年10月21至27日在云南省昆明市举行。参加这次会议的有部内外75个单位131名代表。提交会
The first hydraulic technology experience exchange meeting of the Six-machine Division was held on October 21st to 27th, 1978 in Kunming, Yunnan Province. Attending this meeting were 131 representatives from 75 units inside and outside the department. Submitting the meeting