.Unit1：.交叉学科 interdiscipline 介电常数 dielectric constant 固体性质 solid materials热容 heat capacity 力学性质 mechanical property 电磁辐射 electro-magnetic radiation材料加工 processing of materials 弹性模量（模数）elastic coefficient1.直到最近，科学家才终于了解材料的结构要素与其特性之间的关系。It was not until relatively recent times that scientists came to understand the relationship between the structural elements of materials and their properties . 2.材料工程学主要解决材料的制造问题和材料的应用问题。Material engineering mainly to solve
