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河南省教育厅组织召开了“共晶膨胀率—热分析法快速测定球化率及其装置”鉴定会。来自全国34个单位的40名代表参加了会议。郑州工学院铸造教研室研制的“共晶膨胀率—热分析法快速测定球化率及其装置”工作原理是:从同一试样中,同时
Henan Provincial Department of Education organized a “eutectic expansion - thermal analysis of rapid determination of the rate of ball and its device” appraisal meeting. Forty representatives from 34 units nationwide attended the meeting. Zhengzhou Institute of Technology foundry teaching room “eutectic expansion rate - thermal analysis of rapid determination of ball rate and its device” working principle is: from the same sample, at the same time