earthdin地震
earthn.地球;泥土;世间
Earth-Based Radio Guidance地面无线电制导
earth rectangular coordinate地心直角坐标
earth observation satellites对地观测卫星
earth-approaching asteroid近地小行星
earth return phantom circuit地回线幻象电路
Earth sciences research team科研影响力
earthnut harvesting gatherer花生收获机
Earth-Lunar Horizon Sensor干燥清管器