1·It is the current state of the filament heated to incandescence and is used to light the lamp.
它是电流把灯丝加热到白炽状态而用来发光的灯。
2·Incandescence is used because it is an easy way to affect the overall look of the material's color without directly dealing with the color channel itself.
白炽是被使用的因为这是一个容易的方法去影响材质颜色的全部外观，而不直接安排在自己的颜色通道。