Surface Groups Eritrea 1984-2021
收藏B2FIND2026-03-19 收录
官方服务：
资源简介：
This project develops a novel procedure for proxying economic activity with daytime satellite imagery across time periods and spatial units, for which reliable data on economic...
本研究开发了一套全新流程，可借助日间卫星影像，针对不同时段与空间单元的经济活动构建代理变量，而针对此类对象，可靠的经济相关数据……
