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为了适应金属材料拉伸试验的需要,改善拉力试验机的使用性能,天津市计量测试学会于1981年5月举办了新型钳口技术报告会。会议代表200余人来自大专院校、科研单位、工厂企业、计量测试等132个单位。会上,天津市计量测试学会理事、天津市标准计量局力学室主任赵宁仁作了钳口在试验机上的重要作用及天津市试验机钳口使用现状的报告。会议邀请长春试验机研究所董惠仁、
In order to meet the needs of tensile testing of metal materials and improve the performance of tensile testing machine, Tianjin Institute of Measurement and Testing held in May 1981 a new jaw technology report. More than 200 representatives from the conference came from universities, research institutes, factories and enterprises, and 132 units of measurement and testing. At the meeting, Tianjin Institute of Metrology, Zhao Ningren, Director of Tianjin Metrology Bureau mechanical room made the important role of the jaw in the test machine and the Tianjin test machine jaws using the status report. Meeting invitations Changchun Institute of Testing Machines Dong Hui Ren,