Earthiann.地球人earthn.地球；泥土；世间earth leakage protective device漏电保护装置earth gravitational field model地球重力场模型Earth-cumulic surface horizon覆盖层Earth prefers warmth and dryness土喜温燥Earth fault with high resistance高阻接地故障earth-return telegraph circuit地回线电报电路earthed concentric wiring system接地同轴电缆制Earth Resources Survey Satellite地球资源勘测卫星Earth Resource Survey Satellites地球资源勘测卫星Earth-Centered Inertial System地心惯性系统