off-line operation

例句：

1. 1. Off-line operations are typically slower than online ones.
   离线操作通常比在线操作慢。
2. 2. The company has implemented a new off-line operation system to improve efficiency.
   该公司已经实施了一个新的离线操作系统，以提高效率。
3. 3. During off-line operations, the data center must be isolated from the internet to prevent any potential security threats.
   在离线操作期间，数据中心必须与互联网隔离，以防止任何潜在的安全威胁。