They're designed to reduce the rolling resistance for electric vehicles, increasing range.

它们的设计目的是减少电动汽车的滚动阻力，增加行驶里程。

Some companies are even equipping EVs with rooftop solar panels, further increasing their range.

一些公司甚至为电动汽车配备了屋顶太阳能电池板，进一步扩大了其续航里程。

Turning the car reflective white on sunny days and heat-absorbing black in the cold could also help to cut the electric vehicle's energy consumption, thereby increasing its range.

在阳光明媚的日子里将汽车变成反光的白色， 在寒冷的日子里将汽车变成吸热的黑色， 也有助于降低电动汽车的能耗，从而增加其续航里程。