关于21世纪的航空技术,本刊已连续刊登了一系列文章 本文旨在对这些科学技术的共同特征与发展趋向进行讨论,指出其中作者认为比较重要的技术项目,并尽可能避免重复论述。新时期的航空科学发展环境 世界形势的改变 在东欧巨变、苏联解体后,以两大阵营对立为主要矛盾的两极世界已不复存在,世界正向多极化发展。 This article has published a series of articles on aeronautical technology in the 21st century. The purpose of this article is to discuss the common features and development trends of these science and technology, and to point out the technical projects in which the authors consider it more important and to avoid duplication as much as possible. Aviation Science in the New Era Changes in the World Situation After the great changes in Eastern Europe and the disintegration of the Soviet Union, the bipolar world dominated by the opposition of the two camps ceased to exist and the world is now developing toward multi-polarization.