redundance code

例句：

1. 1. The company uses a redundant code system to ensure data integrity.
   该公司使用冗余代码系统以确保数据完整性。
2. 2.In the field of cryptography, redundant codes are used to enhance security.
   在密码学领域，冗余代码被用来增强安全性。
3. 3. The redundant code is designed to be easily retrievable in case of system failure.
   冗余代码设计成易于在系统故障时恢复。