SC is widening its horizon and deepening its meaning. The history of SC can be divided into three phases: Popularization of Science(PS), Public Understanding of Science(PUS), Science Communication(SC).

• 科学传播事业的发展过程，可以大致分为三个阶段：即“科学普及”(Popularization of science，PS)阶段、“公众理解科学”(Public Understanding of science，PUS)阶段和“科学传播”(science Communication，sc)阶段。