【简答题】Translate the following into Chinese Solid materials have been conveniently grouped into three basic categories: metals, ceramics, and polymers, a scheme based primarily on chemical makeup and atomic ...
【简答题】Put the following words into Chinese atomic structure ; metallic and nonmetallic elements ; conductors of electricity and heat ; rubber ; metal-matrix composites ; flexibility of the polymers ; multip...
【简答题】Solid materials have been conveniently grouped into three basic classifications: metals, ceramics, and polymers. Metallic materials are normally combinations of metallic elements. They have large numb...