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1991年12月20日是本刊前主编李曙轩教授逝世一周年纪念日,特刊发吕家龙先生的这篇文章,以资怀念。
December 20, 1991 is the first anniversary of the death of Professor Li Shuxuan, former chief editor of this issue, special issue of this article by Mr. Lu Jia-long to cherish memories.