Super capacitors or "electric double layer capacitors" store charge in a layer of ions adsorbed on the surface of carbon.
超电容器或者“双电介质层电容器”通过吸附碳层表面的离子储存电量。
2
Let's say that we want to find the flux of the electric field out of a closed surface.
我们想要找出，电场对于一个封闭曲面向外的通量。
3
Sensors detect when dust concentrations reach a critical level and then an electric charge energises the material sending a dust-repelling wave across its surface.