相关的推论是:
1. 这是只供油充足的新笔;
2. 书写的速度较慢
总之,观察不到油薄处字迹应有的残破(被锈点撑破).
相关的推论是:
1. 这是只供油充足的新笔;
2. 书写的速度较慢
总之,观察不到油薄处字迹应有的残破(被锈点撑破).
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