And, as he picks up a product, the system can recognize the product that he's picking up, using either image recognition or marker technology, and give him the green light or an orange light.
当他拿起一种纸巾时， 系统会通过图像识别或者是标识技术 自动识别这种纸巾， 然后显示一个绿灯，或者是橙灯。