- off-line spare
- 备件: spare parts; attachment; rep ...
- 离线: off line; off time; offline mode; off-line(offline); offline
- 备件: (备用易损零部件) spare parts; attachment; replacement part; repair part◇备件明细表 parts list; 备件清单 spare parts list; 备件箱 spare part case
- 在线备份: backup data on line
- 在线备用: ols on line spare
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