To figure out how much power these devices are using, Callie Babbitt and her colleagues at the Rochester Institute of Technology in New York tracked the environmental costs for each product throughout its life - from when itsminerals are mined to when we stop using the device.
为了计算出这些设备的耗电量, 纽约罗彻斯特理工学院的凯丽·巴比特和她的同事们跟踪了每一种产品在其整个生命周期中的环境成本——从其矿物质被开采到我们停止使用该设备。
2018全国卷1