Based upon the aspect of continuous damaging,the process of ore comminution may be des-cribed as the growth and propagation of the microcracks in the ore grains
A mixed method of solution for contact stresses on rollers was suggested by the combina-tion of similitude principle.photoelastic method,Hertz’s contact theory
The dispersoid phase Al<sub>20</sub>Cu<sub>2</sub>Mn<sub>3</sub> in a 2024 Al alloy is commonly composed of twins,An ob-servation of corresponding high resoluti