What is the principle of a saw?
The saw is a metal belt with a triangular rack. The rack is made of left and right inclination, so as to form a wider groove on the sawed object, so as to avoid too much frictional resistance.
Saw is a saw for sawing wood.
The core of a saw that is able to see an object is the triangular rack. The teeth of the triangular rack are very sharp. When the sharp tooth tip moves on the surface of the object, the tooth tip destroys the structure of the object and turns it into powder. This is the same as using a needle across a sheet of paper.
