| Changchun  City is situated at the heart of Songliao Plains in northeast China, and it''s  counties and districts located at 124''18" - 127''02" east longitude,  43''05" - 45''15" north latitude.  The  total area of Changchun is 20,571 square kilometers, including municipal areas  of 2,583 square kilometers, and the municipal constructed area is 159 square  kilometers. The city is 250 - 350 meters above the sea level. The city stands  at the center of the three northeast provinces, and at the crisscross point of  the third east-westward "Europe-Asia Continental Bridge". Changchun  is a city famous for its culture. As a cradle of China’s auto industry,  optoelectronic technology, biological technology and applied chemistry,  Changchun is home to a list of well-known research institutes and higher  learning institutions including Chinese Academy of Sciences, Changchun Branch;  Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of  Sciences; Changchun Institute of Applied Chemistry, Chinese Academy of  Sciences; Changchun Institute of Geography; Changchun Institute of Biological  Products, the Ministry of Health; Jilin University; and Northeast Normal  University, etc.  
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