earth equatorial plane

基本解释

The sundial has its plate parallel to the equatorial plane of the earth, so it is called "equatorial sundia".
晷盘平行于地球赤道面，因而叫“赤道式日晷”。
All geostationary satellites orbit the earth in the equatorial plane at a height of 35,785 km above the equator and stand still at a fixed azimuth and altitude for an observer on the earth surface.
所有的地球同步卫星都在赤道上空35，785 km高度运行，相对于地面观测者来说，它们的方位角和高度角是始终不变的。
Because of its oblate shape, the moment of inertia of the earth is a maximum about the polar axis and minimum about an axis in the equatorial plane.
由于地球是扁球体，绕极轴惯量矩最大，而绕在赤道面内的轴的惯量矩最。