旧信上贴了胶带：别再补贴，也别自己硬揭

Over time adhesives migrate into, embrittle, and stain the paper.

只谈纸本原件的压力敏感胶带，不扩成所有材质或自行修复方法。

Never use tape on any record in an attempt to repair a tear, maintain an association, or for any other purpose.

仅旧纸本上的胶带，不处理现有修复材料选择。

No adhesive tape meets conservation standards, even those advertised as "archival,"

仅指纸质档案原件，普通箱外包装胶带不在内。

Although tape found on a record will damage it over time, do not try to remove it.

不代表旧胶带无害；遇文字遮盖或脆化请专业保存人员判断。

Unskilled attempts to remove tape will likely tear the paper, damage information, and leave sticky residues that affect adjacent records.

仅无训练自行揭除的风险，不提供修复或安全溶剂操作。

Conservation treatment to remove pressure-sensitive tapes is difficult, and sometimes impossible, even for highly trained conservators.

只谈纸本原件的压力敏感胶带，不扩成所有材质或自行修复方法。