针对我国疆域辽阔、地区经济很不平衡的国情,80年代中期,国家制定第七个五年计划时,按经济技术发展水平和地理位置相结合的原则,将全国划分为东、中、西部三大地带。四川、重庆、云南、贵州、西藏、陕西、甘肃、青海、宁夏和新疆10个省、市、自治区;其余9个省、自治区为中部地带。 In response to the vast territory of our country and the imbalanced regional economy, in the mid-1980s, when the state formulated the Seventh Five-Year Plan, according to the principle of combining economic and technological development levels and geographical locations, the country was divided into three parts: the East, the Middle and the West Big strip Sichuan, Chongqing, Yunnan, Guizhou, Tibet, Shaanxi, Gansu, Qinghai, Ningxia and Xinjiang. The remaining nine provinces and autonomous regions are in the central zone.