一、文献调研是研究工作中的重要环节自然科学领域中通常所指的文献,就是生产或研究成果的总结,是人类改造自然的知识的集中表现。因此,调研文献实妹上是间接获得知识的一种手段。重大的创造发明大多是建立在知识的积累的基础上,而知识的积累更多地是间接获得的。从一项具体工作来看,必然在国内外,在过去或现在会遇到与该项工作有关的工作。甚至这项工作很多国家都在做。因此掌 Literature research is an important part of the research work The literature generally referred to in the field of natural science is a summary of production or research results and is a concentrated expression of human knowledge of nature transformation. Therefore, research literature is an indirect means of obtaining knowledge. Major inventions are mostly based on the accumulation of knowledge, and the accumulation of knowledge is more indirectly acquired. Judging from a specific work, it is inevitable that work related to the work will be encountered in the past and present at home and abroad. Even this work is done in many countries. So palm