[KongchangAI]
Unverified88% confidenceDecision RuleTime unknown

笔记本纸张克重≥80g/m²可有效防止钢笔墨水透背,Tomoe River薄型纸虽仅52g但因特殊涂层反而不透,普通70g纸用钢笔会晕染透纸

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