バックアップ電源 でんげん

bakkuappudengen

1. Not a backup power source.

1. Was a backup power source.

1. With backup power; Using backup power

1. Backup power; Emergency power

1. Not a backup power source.; It is not a backup power supply.

1. It's not a backup power source.; It isn't a backup power source.

1. Was a backup power source.

1. Backup power supply.

1. Is not a backup power source.; It is not a backup power supply.

1. Wasn't a backup power source.; Wasn't an emergency power supply.

1. Probably a backup power source.

1. Was not a backup power source.; It wasn't a backup power source.

1. Wasn't a backup power source.; Wasn't an emergency power supply.

1. Backup power source, probably.; It will likely be a backup power source.

1. Was not a backup power source.; It was not a backup power supply.

1. If there were a backup power source; If a backup power source existed

1. If there is a backup power supply; When there is a backup power supply

1. If/when backup power; If there is backup power