一、引言随着科学技术的进展,当今时代处于一个科技信息迅速膨胀的时代,新成果、新动向似繁花竞芳地在所有领域内铺开,科技文献浩如烟海。要把国民经济尽快地搞上去。其中的重要一条是如何提高社会生产率。提高生产率的最有效、最简便的方法是如何获取最新、最快的信息,如何尽快地利用别人已有的新技术、新成 I. INTRODUCTION With the progress of science and technology, the current era is in an era of rapid expansion of scientific and technological information. New achievements and new trends seem to be spreading in all spheres, with a vast literature on science and technology. We should speed up the national economy. One of the important aspects is how to improve social productivity. The most effective and easiest way to increase productivity is how to get the latest and fastest information, how to use other existing technologies as soon as possible,