What does Daxinganling mean in Mongolian?

Daxing'anling means extremely cold in Manchu, and mountain in Mongolian

The origin of Daxing'anling is the name that distinguishes it from Xiaoxing'anling, which contains the significance of raising the country and securing the state. In order to develop the Daxing'anling forest area, February 10, 1964, the Central Committee of China ****, the State Council decided to develop the Daxing'anling forest area. On August 10 of the same year, the State Council approved the establishment of the Daxinganling Special Region with Huma County of Heilongjiang Province and Oroqen Autonomous Banner of the Inner Mongolia Autonomous Region each part of the administrative area. Special People's Committee and the Daxinganling Forestry Administration "government and enterprise", stationed in Gaghdach, by the Heilongjiang Province and the Inner Mongolia Autonomous Region dual leadership, to the leadership of Heilongjiang Province. SAR under the Songling, Xinlin, Huzhong, Tahe four districts (county level). 1967 November, approved by the Heilongjiang Provincial Revolutionary Committee, the establishment of the Revolutionary Committee of Daxing'anling SAR, SAR People's Committee formally withdrawn. 1970 February, set up in Gaghdach District SAR. In April of the same year, the state council, the central military commission approved, the abolition of daxinganling special administrative region, the establishment of daxinganling area, the heihe area belongs to the huma county and hulunbeier alliance belongs to the oroqen autonomous flag, molidaawa daur autonomous flag to daxinganling area jurisdiction; in August, set up dayangshu district. So far, daxinganling area *** jurisdiction 1 county, 2 flags, 6 district. 1971 October, set amur district. 1973 March, set gulian district. 1975 September, the abolition of dayangshu district. 1977 March, set tujiang district. At that time, the whole region *** jurisdiction 1 county, 2 flags, 8 districts. 1979 May 30, the central government, the State Council decided, will Oroqen Autonomous Banner and Moli Dawa Daur Autonomous Region flag to Inner Mongolia Autonomous Region, July 1 of the same year officially for the transfer of formalities. 1980 September, according to the provisions of the new "Constitution", will be changed to the revolutionary committee of the daxinganling area, the daxinganling area administrative office, "the administrative office," the daxinganling area, the daxinganling area, the daxinganling area of the revolutionary committee of the daxinganling area, the administrative office, "the administrative office. Administrative Office, "from real to virtual", for the provincial government's sending organs. Administrative Office in Gagdach District, jurisdiction 1 county, 8 districts. 1981 May, the State Council approved, set Tahe County and Mohe County, the abolition of Tahe, Amur, Tuqiang, Gulian 4 districts. At that time, daxinganling region **** jurisdiction huma, tahe, mohe 3 counties and gagdachi, songling, new forest, huzhong 4 district. Until 1992, the county and district settings in the Daxinganling region no change.