一,文献检索的意义和作用我们知道,科学技术的发展,同人类其它一切知识的发展一样,具有连续性和继承性的特点,科学技术的发明创造,需要依靠经验、材料和理论的不断积累。任何一个科学工作者,他们都有赖于在前人已经取得成就的基础上,进行新的探索,因此“研究必须充分地占有材料”。伟大领袖毛主席十分重视调查研究和占有材料,毛主席指出:“没有调查就没有发言权”,“调查就是解决问题”,“你对于那个问题不能解决?那末,你就去调查那个问题的现状和它的历史吧!你完全调查明白了,你对那个问题就有解决的办法了”。我们在从 I. Significance and Function of Document Retrieval We know that the development of science and technology has the same characteristics of continuity and inheritance as all other human knowledge. The invention and creation of science and technology need to rely on the continuous accumulation of experience, materials and theories . Any scientific worker who depends on new exploration based on what his predecessors have already achieved, therefore, “studies must fully occupy materials.” The great leader Chairman Mao attaches great importance to investigation and possession of materials. Chairman Mao pointed out: “There is no right to investigate without investigation.” “Investigation is to solve the problem.” “You can not solve that problem? Then you go to investigate the current situation of the problem And its history! You fully understand that you have a solution to that problem. ” We are from