solid forged backup roll

例句：

1. 1.This backup roll is designed to protect sensitive data during transmission.
   这个备份卷轴设计用来在传输过程中保护敏感数据。
2. 2.The engineers used solid forging techniques to create this backup roll.
   工程师们使用固态锻造技术来制造这个备份卷轴。
3. 3.The backup roll is essential for maintaining the integrity of the system in case of a power outage.
   备份卷轴对于维护系统完整性至关重要，以防停电。