The next factor is the energy cost of running, which is the equivalent to miles per gallon in an automobile.

第二个因素是运动能量消耗，相当于汽车每英里消耗汽油加仑量。

youdao

When advertising a new car's efficiency, for example, it is more convincing to talk about the number of extra miles per gallon it does, rather than the equivalent percentage fall in fuel consumption.

比如，在宣传新车效率时，引用每加仑汽油多跑的英里数要比引用减少的耗油量的比值要更有说服力。

youdao

It's electric drive yields the equivalent of 300 to 600 miles per gallon.

这是电气传动产量相当于300到600英里每加仑。

youdao

The new Ford Fusion Energi plug-in hybrid boasts 108 MPGe (miles per gallon of gas equivalent).

FORBES: 108 MPG With 2013 Ford Fusion Energi Plus 25 Gigabytes Of Data

The efficiency of a car engine can be defined in terms of a miles-per-gallon equivalent.

ECONOMIST: Philanthropy: All shall have prizes | The

Thirteen teams are competing to build a plane that can fly at least 100 miles per hour and achieve the equivalent energy efficiency of 200 miles per gallon of fuel on a 200-mile flight.

FORBES: Google Pushes Electric Planes In Green Flight Challenge