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河北省机械工程学会无损检测专业委员会第二届委员会于1990年5月4～6日在石家庄召开。参加会议的代表有:专业委员会新老会员、学术论文作者、中国无损检测学会和山西省无损检测学会代表共41
Mechanical Engineering Society of Hebei Nondestructive Testing Committee of the second session in May 1990 4 to 6 held in Shijiazhuang. Representatives attending the meeting are: the new and old members of the Professional Committee, the author of the dissertation, the Chinese Society for Nondestructive Testing and Shanxi Institute of Nondestructive Testing for a total of 41