建国以来,随着社会主义建设事业的发展,我国设计部门积累和保存了大量的工程设计档案。一些大、中型的设计院,目前保管的底图一般都在20万张以上,兰图档案约10万册以上。这一部分档案的主要特点是:数量大、利用率高、增长快、内容复杂、专业性和技术性强。随着我国四化建设的发展,今后利用工程设计档案的单位和人员将会越来越多。根据档案内容综合汇编工程设计档案参考资料提供利 Since the founding of the People’s Republic of China, with the development of socialist construction, a large number of archives of engineering design have been accumulated and preserved in our design department. Some large and medium-sized design institutes, the current custody of the base map are generally more than 200,000, about 100000 orchid chart file. The main features of this part of the archives are: large number, high utilization rate, rapid growth, complex content, professional and technical. With the development of the four modernizations in our country, there will be more and more units and personnel who will make use of the engineering design files in the future. According to the contents of the file comprehensive compilation of engineering design files reference to provide Lee