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由长春试验机研究所主持召开的国家标准<平衡机—防护罩和其他安全措施>标准研讨会在北京青云仪器厂的大力支持赞助下于1989年7月10日至14日在北京召开,到会的有工厂、科研、学校等共10个单位13名代表。 <平衡机——防护罩和其他安全措施>是一
The national standard sponsored by Changchun Institute of Testing Machines was held in Beijing from July 10 to July 14, 1989 under the auspices of Beijing Qingyun Instrument Factory with the sponsorship of the “Standard Balancing Machine-Shields and Other Safety Measures” There will be a total of 13 representatives of 10 units including factories, research institutes and schools. is one