1·The attractive force decreases with the distance in the same proportion as light, which, we saw a little while ago, decreases in intensity as the square of the distance increases.
引力随距离减少的程度，跟光线随距离减弱有相同的规律，这个规律我们不久前刚刚讲过，即强度的减弱跟距离的平方成正比。
2·The attractive force between the dimer and the needle drew the lower atom of the dimer upward, causing the dimer to shift from one position to the other.
二聚体与探针之间的引力将二聚体中较低原子向上方拉动，使二聚体从一种姿态切换至另一种。
3·By this the attractive force of the earth was not suspended, it is true; but it was balanced by the equality of the weights.
这样一来，地球引力对钢棍的作用就互相抵消，这是必然的。而且，由于两端重量相等，所以它能够保持稳定。
4·The maximum attractive force, yield force and rupture force decrease with increasing substrate temperature.
针尖和基体之间的最大引力、屈服力和断裂力随着基体温度的增加而减小。