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美国政府四大科技报告(AD,PB,NASA,AEC 详见附注1)是美国政府用来刊登美国科研正式成果或科研课题取得进展的大套文献资料.它们具有报导速度快,反映科学技术新和索取资料可靠等特点.因此它们是我国科学技术和图书情报研究人员了解美国现代科学技术的重要情报来源.作为一个图书情报研究人员或一个科研人员来说,切实掌握美国四大科技报告的查找方法是非常必要的.然而如何快、全、准地查找这些文献(包括专利文献)而又不遗漏重要的文献这是一个十分重要的问题.本文就是根据美国政府四大科技报告检索工具在编排著录上的特点,通过其提供的“叙词”(descripors),“识别词”(indentifiers)和“相关参照”((?)s refrence)来解决这一问题的.
The four major scientific and technical reports of the U.S. government (AD, PB, NASA, AEC, see note 1) are a large set of documents used by the U.S. government to publish the progress made in the official scientific research projects in the United States or in scientific research projects. They have the advantages of reporting rapidly and reflecting new scientific and technological achievements And access to reliable data and other characteristics.So they are science and technology and LIS researchers in the United States to understand the important sources of modern science and technology information.As a librarian information researchers or a research staff to effectively grasp the four US scientific and technological reports to find Method is very necessary.However, how to find these documents (including patent documents) quickly, completely and without omission of important documents is a very important issue.This article is based on the United States government four technology report retrieval tools in the arrangement The characteristics of the bibliography are addressed by the “descripors,” “indentifiers,” and “relevant references” (?) S refrence that they provide.