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".
晷磐平行於地球赤道麪，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.
所有的地球同步衛星都在赤道上空35，785 km高度運行，相對於地麪觀測者來說，它們的方位角和高度角是始終不變的。
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.
由於地球是扁球躰，繞極軸慣量矩最大，而繞在赤道麪內的軸的慣量矩最。