国家的整体科技发展水平与国民经济发展紧密相关 ,而政府、企业对科技的投入又在很大程度上影响着科技发展水平的提高。从农业经济、工业经济发展到知识经济 ,是人类进步的重要标志。世界各国特别是经济发达国家 ,随着研究与开发投资的不断增加 ,科学技术迅猛发展 ,引起产业结 The overall level of science and technology development in the country is closely linked to the development of the national economy. The investment in science and technology by the government and enterprises, to a large extent, also affects the improvement of the level of science and technology development. From the agricultural economy, industrial economic development to the knowledge economy, is an important symbol of human progress. In all countries in the world, especially in economically developed countries, with the continuous increase in investment in research and development, the rapid development of science and technology has caused industrial agglomeration