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研究在不同条件下用修正液、修正带涂改字迹后字迹耐久性的变化及修正液、修正带本身的变化 ,为合理选用和使用修正液和修正带提供理论依据
To study the changes of the durability of the handwriting and the correction fluid after correcting the writing with correction fluid under different conditions and to correct the changes of the belt itself so as to provide a theoretical basis for the rational selection and use of the correction fluid and the correction belt