(For home wiring, some people have made such a vivid example: the basic decoration based on the ground, walls, and furniture is like a human body, and the generalized wiring used for household strong and weak electricity is like a distribution on the human body. "nerve". Indeed, the decoration in place is not only to pay attention to the quality of the hardware, but also to consider whether the details of the daily life after moving in are convenient and comfortable. Because these are what we really feel in our daily diet and daily life.)