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。
Sciences in the past communication theory ignore the public issue of understanding, this text remedy the shortcoming, one by purpose, communicate science to understand with the public close and connectedly, discuss the interreaction between them, The theory taking pursueing as science dissemination is built and makes new contribution.
A Structural analysis was made on science propagation system by taking system theory as the basis and theory starting point. Modern science propagation system was divided into subject,medium,object and purpose four elements,and its arrangements and types were also studied.
The essay makes a preliminary exploration of the inner meaning of scientific culture,and treats the importance of its spread in the spread of contemporary scientific culture from two aspect: the features of contemporary scientific spread and the objective demands for the real social development of our country.
ESPR subject area 4 'environmental education, science communication, science >amp; policy, health issues'
Subject area 4.1: Environmental sciences education subject area 4.2: Science communication and information; Information manageme
Subject area 4.2: Science communication and information; information management subject area 4.3: Regulatory actions and legisla
Subject area 4.1: Environmental sciences education Subject area 4.2: Science communication and information; information manageme
This choice resulted in a selection of nearly one per cent of all papers of the above types recorded in the 1992 annual cumulation of the SCI.Core documents proved important nodes in the network of documented science communication.