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,名‘称、「一-r时间第六届铸造机械学术年会第三届中日,超精密加工技术研讨会赞第四次中国精密加工技术研讨会第二次全国故障诊断技术研讨会铸件凝固理论研讨会第六届全国焊接学术会议第四次成组技术研究会学术年会团体会员专题报告及信息交流会第四届全国振动会议.~材料缺陷?
, The name said, "a-r time the sixth session of the foundry mechanical third annual Sino-Japanese super-precision machining technology symposium fourth China Precision Machining Symposium second national fault diagnosis technology seminar casting Solidification Theory Symposium The 6th National Welding Symposium The 4th Symposium Symposium Group Annual Conference Symposium and Information Symposium The Fourth National Vibration Conference. ~ Material defects?