英语语法分析

There is a maximum size that mountains can attain that gets smaller as the planetoid gets more massive.

山体能达到的高度是有限度的，而且 小行星引力越大，山体能达到的高度就越低。

Due to the dragging force, trajectories of spacecraft circling planetoid can departure from the standard taper curve orbit which is obtained by the two-body hypothesis.

绕小行星运行的航天器由于受到摄动力的影响，运行轨迹会偏离二体假设下的圆锥曲线轨道。