Some small flames are covered with soil, and the open flames are weakened, but there are hidden dangers at the root of the flames, which are easy to continue to ignite the surrounding grass, which is conducive to the rapid fire extinguishing after watering the water source, so it is very important for the water room to go up the mountain. In addition, when putting out a fire or finding a fire, people wearing contact lenses must stay away from the fire source, because contact lenses are flammable and easily deformed when exposed to high temperature. Fire fighting must be steady, strict, wide, thin, strong and fast. Only by doing the work carefully can the fire prevention work leave no hidden dangers.