device backup

• 设备备份,设备后援

device backup的用法和样例：

例句

1. So the shuttle might have to go to the backup site in California.
   因此飞船有可能不得不在卡尼佛里亚后援区着落。
2. It could also provide backup power for extended operations if generators fail.
   如果发电机出现故障，它还能为大范围作战提供后援能量。

词汇搭配

• back up (因积聚而)拥堵...