But until they are widely available, simple changes to the internal combustion engine-and the way we drive-could as much as double gas mileage.

但是，在这些汽车还没有广泛使用之前，对内燃机简单的改变以及我们驾驶方式的改变能使汽油里程加倍。

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The internal combustion engine shuts down whenever the accumulator charge is sufficient to drive the motor.

每当蓄压器的电足够开动发动机时，这个内燃发动机就会关闭。

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In his application Selden described a machine with a gasoline-driven, combustion-type engine that sat in front of the driver; a clutch; a foot brake; a drive shaft; and front-wheel drive.

申请中，赛尔登描述了一项机器是石油驱动、在驾驶座前有燃烧式发动机；离合器、脚刹车、前轮驱动。

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The company also is developing four-wheel-drive technology that powers two wheels with an internal combustion engine and two with an electric motor, eliminating the need for a drive train that takes up floor space, Ho said.

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