Earthiann.地球人
earthn.地球;泥土;世间
earthed insulation instrument接地绝缘仪
Earth moves around the sun.地球绕着太阳转
earth-equivalent of gravity地球重力当量
earth leakage circuit breaker漏电保护断路器
earth station equipment noise地球站设备噪声
earth- ionosphere waveguide地电离层波导
earth surface water resources地表水资源
earth rotation synthesis array地球自转综合天线阵
earth system dynamic evolution历史地球系统动力学