equatorium行星定位仪equatorn.赤道equatorial counter currents赤道逆流equatorial convergence zone[气]赤道辐合区equatorial armillary sphere赤道经纬仪equatorial sporadic E layer赤道时现E层equatorial coordinate system赤道坐标系equatorial spore germination[医] 中腰发芽equatorial moment of inertia中线惯性矩, 轴惯性矩equatorial synchronous orbit赤道同步轨道equatorial projection method赤平投影法equatorial precipitation belt赤道多雨带