Comminution of concretions

特許 権利維持 Comminution is the reduction of solid materials from one average particle size to a smaller average particle size, by crushing, grinding, and other processes.[1][2] In geology, it occurs naturally during faulting in the upper part of the Earth's crust.[3] In industry, it is an important operation in mineral processing, ceramics, electronics, and other fields. In dentistry, it is the result of mastication of food. In general medicine, it is one of the most traumatic forms of bone fracture.