cajole 发表于 2025-3-28 16:37:13
Introduction: A Sketch of the History and Scope of the Field,nd strength of materials. Through the years its meaning has been extended to cover the study of the motions of all kinds of particles and continua, including quanta, atoms, molecules, gases, liquids, solids, structures, stars, and galaxies. In a generalized sense it is applied to the analysis of any