backup power source造句

At Schwab, backup power sources provided electricity at the firm's downtown headquarters.
That has more consumers and businesses looking for backup power sources.
:: : : They had diesel engines as backup power source.
Teddy gets into the electrical box, but the girls have a backup power source.
Both airports were working on backup power sources.
It's difficult to find backup power source in a sentence. 用backup power source造句挺难的

All the Olympic sites and security command centers have generators and other backup power sources, officials said.
Are the airport's backup power sources sufficient?
The plutonium fission reactor was most likely left installed underneath Mr . Fusion as a backup power source.
These batteries can be used, for example, as reserve batteries in telephone exchanges and as backup power sources.
In addition, the pilots contend, many airports in Argentina have inadequate runways, rescue services, backup power sources and security.
Unlike most NPR stations of the time, it had no backup power source for its transmitter, resulting in frequent outages.
Plesetsk, Russia's main facility for launching unmanned probes and military tests, ran for at least two days on backup power sources.
But while fuel cells may never be more than a backup power source, in a few cases they play a much bigger role.
However, including a second memory to achieve non-volatility ( and the on-board backup power source ) increases the product cost compared to volatile memory.
A backup power source kicked in that allowed the elevator to move to a floor but the doors would not open, presidential spokesman Barry Toiv said.

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