建交30年来中美关系发展分析

A Case Study of China-U.S.Relationship since the Two Countries Have Set up Diplomatic Ties 30 Years ago

中美建交30多年来，两国关系的发展经历了曲折式前进、螺旋式上升的过程。从影响中关关系发展的因素看，有国际格局的变化、两国社会的变化、国家领导人的作用和两国民间交流的力量这三个层次。未来中美关系向前发展的总趋势不会改变，但也不会一帆风顺。

Since the establishment of diplomatic relations between China and the U.S.30 years ago,those relations have undergone a development process of growth amid twists and turns and development in spirals.If we take a look at those factors that can give them influence over the course of development of those relations,we will find out that are three gradations of forms in the structure,i.e.changes in international arrangement;changes in society of the two respective countries;the state leaders' role and influences of mutual exchanges among the peoples of the two countries.Future China-U.S.ties will more or less follow the same trend,though not having a favorable wind all the way.