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该文研究了α,α′－二氧代烯酮环二硫(氮)代缩酮的紫外光谱,指出了它们随化学结构而变化的一些特征.“,”In this paper,the ultraviolet spectra of ?α,α′??dioxoketene cyclic S,S?acetals (N,N?acetals) have been studied and their changing characters with the change of chemical structure have been indicated.??