发电机利用这一运动过程中产生的动能来充电，充电速度跟壁式充电器一样。

The kinetic energy from this movement is harvested to deliver charge at the same rate as a wall charger.

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把电能又送回电网时，就释放一部分转动的动能，开动位于主轴的发电机。

To pump energy back into the grid, some of the rotational energy is bled off to power a generator on the main shaft.

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事与愿违，这个鼓励并没有发挥混动车的优势，因为混动车在设计时就主要考虑到了频繁起步停车过程时利用汽车发电机制动而将汽车的动能转化为电能储存在蓄电池里面，从而提高了燃油经济性。

Equally perversely, this waiver fails to take advantage of the particular benefits of hybrids, which are built for stop-go traffic where braking recharges the battery and boosts fuel economy.

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