| |||
| 本地备份 | |||
| 近后备 | |||
| 局部后备 (保护); 局部备用设备; 局部备用方案 | |||
|
local backup : 4 phrases in 2 subjects |
| Electronics | 2 |
| Hydroelectric power stations | 2 |
| |||
| 本地备份 | |||
| 近后备 | |||
| 局部后备 (保护); 局部备用设备; 局部备用方案 | |||
|
local backup : 4 phrases in 2 subjects |
| Electronics | 2 |
| Hydroelectric power stations | 2 |