backup gas造句

The backup gas-powered pump is too wet to start.
It also has a heat pump with backup gas furnace, a central air-conditioner, custom kitchen cabinets, carpeting and a finished two-car garage with insulated doors.
On top of the high storage levels, relatively few unscheduled nuclear outages-- reducing demand for backup gas generators-- combined with unseasonably cool weather in the Midwest and other regions, are driving gas prices down.
It's difficult to find backup gas in a sentence. 用backup gas造句挺难的