英语语法分析

The earth is a spheroid and not a sphere.

地球是一个椭球而非球体。

Can swipe the spheroid clean on the sharp valve seat edge at the time of each operation.

每次操作锋利的阀座边缘都可以把球体刮擦干净。

The earth is an oblate spheroid - a sphere with flattened poles and a slight bulge at the equator.

地球是一个扁平的球体—一个具有扁平的两极和赤道附近稍稍凸出的球体。