英文句子在线翻译

Abstract: bond () can generally be divided into a single, JinShuJian and ionic. Bonds are the main factors of chemical properties. From the essence of ionic form to introduce held. To combine theory and modern heterozygous orbital theory to explain covalent bond. Modern combine theory: 1. The basic points and form. 2 or, Three types of single, 4. A single concept and forming conditions. The hybrid orbital theory: sexual heterozygous and range of the hybrid. JinShuJian free-electron gas from the classical model of development to JinShuJian band theory, the formation of JinShuJian essence and physical properties of metal crystals.