The new revision method basically has resolved the problems of "PlaneEarth Model" and has improved the accuracy of well survey calculation.
从根本上解决了常规测斜计算中“平面地球”模型所带来的不足，进一步提高了测斜计算的精度。
2
Earth is the only one of the inner planets with a large satellite, the orbit of which is neither in the equatorial plane of Earth nor in the plane in which the other planets lie.
地球是内行星中唯一一个有大卫星的，它的轨道既不在地球的赤道平面上，也不在其他行星所在的平面上。
3
If you have ever flown on a plane, you've got a new respect for Earth.