为了方便大家选择，我给大家简单介绍：
topic（主题）：MECHANICS OF MATERIALS
——An Introduction to the Mechanics of Elastic and
Plastic Deformation of Solids and Structural Materials
【THIRD EDITION】
author（著者）：E. J. HEARN
(Ph.D., B.Sc. (Eng.) Hons., C.Eng., F.I.Mech.E., F.I.Prod.E., F.1.Diag.E.)
University of Warwick
United Kingdom
