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The additives are phenyl sulfone (PS), methyl difluoroacetate (MDFA), and ethyl trifluoroacetate (ETFA) respectively. 添加剂分别为苯砜（PS）、二氟乙酸甲酯（MDFA）和三氟乙酸乙酯（ETFA）。
Above all, these three substances PS, MDFA, and ETFA were first used as additives of PC based electrolyte solution in this dessertation. 纵上所述，本文首次将PS、MDFA和ETFA这三种物质用于PC基电解液添加剂。