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郑州市科委受河南省的委托主持召开的QDG50型全封闭固定气垫带式输送机鉴定会于1991年12月25日在郑州召开。该机是郑州市气垫运输设备厂制造的,在技术上与太原重机学院合作。参加会议的除省市有关部门外,还有设计研究院所、高校和用户等21个单位28名代表。会上审查了技术文件、图纸和资料,并对使用现场进行了考察。经讨论
Zhengzhou City Commission commissioned by the Commission of Henan Province held a QDG50 fully enclosed fixed air belt conveyor identification will be December 25, 1991 in Zhengzhou. This machine is manufactured by Zhengzhou Cushion Transportation Equipment Factory and technically cooperates with Taiyuan Heavy Machinery Institute. In addition to the provincial and municipal departments participating in the conference, there are 28 representatives from 21 institutes, including design institutes, universities and users. At the meeting reviewed the technical documents, drawings and information, and the use of the site were inspected. After discussion