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全国第二次等离子弧切割应用技术交流会于1989.10.18～20日在北京煤矿机械厂召开。参加会议的有来自全国的五十九名代表。会议期间有十一名代表宣读了13篇文章,介绍了等离子弧切割工艺、设备应用等方面的研究成果、经验和体会。会议还组织了“浅水下空气等离子弧切割”
National second plasma arc cutting application technology exchange was held in 1989.10.10.20 ~ 20 in Beijing Coal Mine Machinery Factory. Fifty-nine delegates from all over the country attended the meeting. During the conference, eleven representatives read 13 articles introducing the research results, experiences and experiences in plasma arc cutting technology and equipment application. The meeting also organized a “shallow underwater air plasma cutting”