remote-sensing satellite (～的关键技术：)全天候、全天时、多谱段、不同分辨率、稳定运行的对地观测体系allweather,24-hour,multi-spectral,differential-resolution earth observation system for stable operation/(～)对陆地、大气、海洋的立体观测和动态监测stereoscopy and dynamic monitoring of the land,atmosphere and sea