求翻译：档案定义研究 ,是档案学基础理论研究的重要组成部分。建国四十五年来,档案学界对这一问题展开了热烈的讨论 ,分如下四个时期作一概述:是什么意思？

File defines the study is basic research archives an important part. Founding 45 years, scholars of this issue and file a lively discussion, the following four sub-periods are summarized below:

Archives Research definition, is an important part of the basic theoretical research archives. Nation-building over the past 45 years, the archives academics to a lively discussion of the period, 4 hours is briefly summarized as follows:

The file definition research, is the file study basic theory research important constituent.Founds a nation for 45 years, the file educational world has launched the warm discussion to this question, divides a following four time seasonal cropping outline:

Archives research on the definition, is an important part of archival science theory research. Founding of 45 years, the archives profession had a lively discussion on this issue, make an overview during the following four:

Archives research on the definition, is an important part of archival science theory research. Founding of 45 years, the archives profession had a lively discussion on this issue, make an overview during the following four: