本世纪以来,自然科学有了长足的发展,伴随这种发展,产生了很多不同以往的特征,正确认识这些特征,对于我们制定科技发展战略,加速我国社会主义现代化建设具有重要意义。 Since this century, great progress has been made in the development of natural sciences. With this development, many different characteristics have emerged. A correct understanding of these characteristics is of great significance to us in formulating the strategy of science and technology development and speeding up socialist modernization in our country.