Mixture
Enameling metal ware for storing bread wine
Putting icing on the inner walls of barrels
Soaking beer barrels with paraffin
Removal of water infiltration and moisture penetration through the brick wall of the pool
The degree of counter water paints the world
Composition for wads
How to tell the strength of paper handicrafts?
Judging distances
A simple way to measure the height of trees, buildings and so on.
Weather prediction in the form of clouds, the color of the sky and other similar grounds