A series of Chinese high-resolution (the name means high resolution) Earth-observation satellites; GF-1 was launched on 26 April 2013, from the Jinquan Satellite Launch Center, and GF-2 on 19 August 2014, from the Taiyuan Satellite Launch Center.
科学参考收录了60776条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。