Solar cells work by the action of light on electrons 太阳能电池通过电子光运动来工作。
2.
It used an at & t " light valve " to record sound directly on the film as it passed through the camera 这种摄像机使用at & t “电子光阀” ，当声音经过摄像机时，能够直接记录在胶片上。
3.
Light detected by electronic photosensors affects the voltage in that part of the circuit in a way that is analogous to how it affects a corresponding cell in the retina 电子光感应器侦测到的光线，会影响该部份?路的电压，就像光线对视网膜上相对应细胞的影响。
