With the development of economy and the improvement of the exoteric extent in some region, the conventional method of population projection has been out of date.
With the development of economy and the improvement of the exoteric extent in some region, the conventional method of population projection has been out of date.
摘要随着经济发展和区域开放程度的提高，传统的区域人口预测方法已不合时宜。