earth tophr.
earthn.地球;泥土;世间
earth dynamic ellipticity地球力学椭率
Earth s free oscillations地球自由振荡
earth relative reflection地表相对反射率
earthing capacity current接地电容电流
earth-reflected impulse大地反射脉冲
earth horizon sensor head地平传感器头
earthed-emitter circuit发射极接地电路
earth pressure of chamber土舱土压力
earth-ionosphere cavity地球-电离层空腔