1964-1980，The party and the country target the grim international situation，Guiding ideas with national defense and combat reserve，It carried out an unprecedented national defense in 13 provinces and regions in the central and western regions of my country、Technology、Industrial and Transportation Infrastructure Construction Movement，That is "Third Line Construction"。The construction of the third line has established a stable industrial base in the middle and western regions of my country，The pattern of unbalanced development of the East and West Development has been initially changed，Promoting economic development and social progress in the central and western regions。In addition，On the front line of the country、Innochightedland in the second line，28 provinces、Area、The "Little Three Line"。Third -line construction file refers to relevant government agencies in my country、Implementation of enterprises and institutions and individuals in the construction of the third line、The material and intangible form information of the various types and carriers of the relocation period，Including archives document、folk literature materials、Vocal information of pro -calendar、Image data, etc.。As my country's valuable archives literature heritage，Third -line construction bet365 best casino games files are both historical testimony of industrialization under the leadership of the Central Committee of the Communist Party of China，It is also a vivid manifestation of the great cause of socialism in millions of three -tier builders。

　Bet365 app download First，precious historical value。Third -line construction files are reality to record the period of socialist construction in my country，The party and the country to defend the independence of sovereignty and national security，Not afraid of hardship，An unprecedented latter national defense technology and infrastructure construction movement in the central and western regions of my country，The foundation of my country's socialist industrial system and modern development。2，Thick social value。The files of the third -tier construction archives faithfully record the builders from millions of three -tier lines from all over the country and the central and western regional governments and the people of all ethnic groups，The moving scene of socialist construction together，The spirit of patriotism and dedication of people during the period of socialist construction，It is the deepest collective memory and era memory of people。third，Unique technology value。Third -line construction files reflect the industry of socialist construction in my country、Defense、Transportation and technology in production technology、Project Construction、Level and ability in the process of process and process，It has important reference value for studying the development level of modern science and technology in my country。

　　2. The third -tier construction archives are distinctive.First，The theme is clear、profound connotation。Third -line construction file reflects "hard entrepreneurial、Monopoly Dedication、Unity and collaboration、The "Three Line Spirit" of Innovation "，shows the major achievements of my country's socialist construction period，It is the historical testimony of the foundation of my country's modern industrialization and urban development。For example, Sichuan's "Panzhihua Steel Base Archives" is a witness of successful models of "concentrated strength to do major events" in socialist countries，Hubei "Gezhouba Water Conservancy Project Archives" records the first large hydropower station on the dry flow of the Yangtze River and the world's largest low water head large flow and runoff water power plant construction process。Next，Broad distribution、Tibetan quantity huge。The third -line construction file reflects the focus of the Southwest region at the time，With "two bases and one line" as the core，Cheng Kun、Sichuan Qian、Jiao Liu and other important trunk railways，Formed Panzhihua Steel Industry Base、Chongqing conventional weapon industrial base、Liupanshui Coal Industrial Base，West Yu、Hunan and Hubei Weapon Industry Base, etc.，File hidden amount is extremely rich。again，Diverse types、Emotional sincerity。Rucheng Kun、Sichuan Qian、Jiao Liu and other railway archives record southwest、Northwest、Ethnic minorities in the Central South China participated in the construction of a third -line railway and key projects，and the social and economic development of these regions。These archives record a series of important instructions and inspections that the older party and state leaders have done on the construction of the third line，Reflected some comrades who have worked on the third line and later went to important leadership positions。In addition，Documents of the Party Central Committee, the State Council, and the provinces and cities，There are also instructions from the leaders of the party and the state，There are various folk documents and documentary、Song、Old photos and other image information。Last，Great value、Great value。According to the Standard Demonstration of the China Archives and Literature Heritage Projects in accordance with the State Archives and Document Heritage Project，Three -line construction archives Literature Heritage in the theme、Time、Region、National and characters、Form and style、Systemic、Rareness and other aspects of the characteristics of significant characteristics。Third -line construction files reflect the first and world -leading historical status of many third -tier projects，For example, Chongqing's "816 Underground Nuclear Engineering Archives" reflects its first atomic energy power plant for the production of atomic bullets、China's only tank nuclear nuclear reactor、China's second nuclear raw material industrial base and "World First Artificial Cave"。2018，The project was selected as the "First Batch of Protection List of China's Industrial Heritage"。

　　3. Fully protect and use the third -tier construction archives.Since the 1980s，Development with the work of the army，Many third -tier construction projects gradually decrypt，Third -line construction research has gradually attracted the attention of academic circles。Enter the 21st century，Third -line construction files are highly valued by the academic community。Current，The protection and utilization of the third -line construction archives from the perspective of archives and literature is relatively weak。In addition，Many third -tier construction enterprises and institutions are relocated due to relocation、Reform or bankruptcy，Caused a lot of file loss or loss。Therefore, the protection and utilization of the third -line construction archives is uncertain，can be expanded from the following aspect。First，System collection and sorting。Leading with the provincial archives，Comprehensively collect and organize the provincial three -line construction archives literature。Not only rely on archives departments at all levels，It should also actively mobilize the scientific research institute、Social group and individual participation，Comprehensively understand the relevant government archives at all levels、Basic situation of the third -tier construction archives hidden by enterprises and institutions and individuals，Also pay attention to personal letters、Diary、Work Notes、Manuscript、Certificate and other folk literature collection and sorting。Next，Create a database。Digitalize the third -line construction file，It is conducive to the protection of the original file and open to the outside world，Convenient for researchers to find and use。and from the perspective of archives and literature，In -depth research on the third -line construction archives、Analysis of quantity and comprehensive application for the "Archives Literature Heritage List" at all levels，Research on the construction of third -tier construction。Last，Strengthen academic research。Relevant experts and scholars from universities and scientific research institutes establish academic communities，Cross -disciplinary research。Through the application of various national projects、Hold an academic seminar、Establish a special fund、Publishing archives Literature compilation and research monographs，Academic value and influence of enhancement of the research of the third -line construction archives。

In short，In -depth research on bet365 Play online games the third -line construction archives from the perspective of archives literature，Not only will it help strengthen the protection and use of it，It also helps to show the "three -line spirit" that it represents its representative。

(This article is the 2018 Ministry of Education ’s Philosophy and Social Science Research Major Research Project“ Collection and Research on the Collection and Research on the Collection of History of Three -Lord Construction ”(18jzd027) in the phased achievement)

(Author Unit: Three Gorges University Ethnic Academy)