笔者认为中学教材[1] 中“当分子间距离大于平衡距离时 ,斥力、引力随分子间距离增大而减小 ,但斥力减小得快”的观点不全面 ,因为“随着r的增大 ,斥力不一定比引力减少得快” ;同时也认为《热学教程》[2 ] 中“又因st,故排斥力随距离增加而减少得比吸引力快 .”的推理不严谨 The author believes that in the middle school textbook [1], when the intermolecular distance is greater than the equilibrium distance, the repulsive force and the gravitational force decrease as the intermolecular distance increases, but the repulsive force decreases rapidly, because the viewpoint of “increasing with r” is not comprehensive. Large, repulsive forces are not necessarily reduced faster than gravitational pulls.” At the same time, it is also believed that in the “Thermal Science Tutorial” [2], “The repulsive force is reduced more quickly than distance due to st., so the reasoning is not rigorous.”