shell archives

例句：

1. 1.The company's shell archives are stored on a secure server.
   该公司的外壳存档存储在安全服务器上。
2. 2.The archivist carefully organized the shell archives to ensure their preservation.
   档案管理员仔细整理了外壳存档，以确保其保存。
3. 3. The shell archives were used to store historical documents for future reference.
   外壳存档被用来存储历史文件，以便将来参考。