Science and technology have meant a thought process, is a causal relationship between the material world in the research, and have adopted the experimental method. In theory, the scientific relevance of their findings less attention is more focused on the development of universal law. However, in practice, science and technology are interrelated and can not be broken. From chemists, engineers, physicists, astronomers and other scientists in the process of historical development can be seen Zhang varying degrees of interaction between the two. Different educational requirements, differences in social status, different terms and methods of the term, and different career objectives and professional purposes, made it possible to the activities of scientists and technical staff plus one distinction. But throughout history, pure scientific research personnel to make theoretical contributions, it is also made many contributions on the application.