**Design a three-layer structure for the umbrella fabric, similar to the molecular structure studied in the laboratory. In the picture, the rain falls on the first layer of fabric, the rain pops out, the middle layer strengthens the waterproof layer, and the third layer is the sunscreen layer, showing that the sun can not enter the inner layer of the fabric, which is expressed in the form of 3d simulation. The picture needs to have a sense of technology --s 750 --niji 5** - <@1013268531183362068> (fast)