针对不同的老化特征，选择使用适合的鉴别方法可以确定文件制成的真实时间。

To ascertain the real making time of the document in view of the ageing characteristics and choosing the suitable identification means.

youdao

针对不同的老化特征，选择使用适合的鉴别方法可以确定文件制成的真实时间。

To ascertain the real making time of the document in view of the ageing characteristics and choosing the suitable identification means.

youdao