Based on the process of the high - tech ' s development as well as basic theory of economics , the paper elaborates the essential characteristics of the high - tech systematically , further analyzes the character of high - technical value which is high - risk , high - extrinsic value and , high - cost 根据高技术发展历程及经济学基本原理，系统阐述了高技术的基本特征，深入分析了高技术价值的高风险性、高附加值性、高成本性。从而揭示了高技术价值的经济科技特性，为高技术价值的评价奠定了基础。
As a new generation of micro - satellite based on micro - electro - mechanic system ( mems ) , pico - satellite , in virtue of its low weight ( 1kg or lighter ) , is unburdened from high - cost large sending sets . thereby research of pico - satellite can be progressed with much lower cost without huge experimental establishments and wide - span workshops so that institutions , mostly universities , became the main researching force . besides reduced expenses , another advantage of research in university laboratories is the potential high privacy 皮型卫星是新一代以mems技术为核心的微小卫星，由于质量很轻( 1kg以下) ，可不使用高成本的大型运载工具进行发射，其成本可比一般卫星大大降低；此外，皮型卫星的研制将不再需要大型的实验设施和高跨度厂房，因此目前大学等研究机构是研制皮型卫星的主要科研力量，在大学的实验室里研制皮型卫星，可以降低它们的研制费用。
As china into 21 century , the urbanization has been developing rapidly . it is impossible that rapid urbanization depends on entirely the pattern of high - cost , high - level , high - quality , because of the basic situation of " low cost capacity " and " large farmer population " “农民对城镇化进程成本支付能力低”和“城镇化人口转移压力大”这二个基本国情决定了我国城镇化进程不可能完全走高成本、高水平、高质量的发展模式，更应考虑低成本、循序渐进的发展方式。
