gravitational attraction
英汉例句
- It is our nearest neighbour in space,and like ourselves it is kept tied to the earth by the earth's gravitational pull.
月亮是太空中离我们最近的邻居，它也像我们一样，被地球引力紧紧地拉住。 - Small moonquakes, originating several miles below the surface, are thought to be caused by the gravitational pull of the earth.
发源于月球表面以下几英里的微弱月震据估计是由地球引力的牵引造成的。