The colloids are formed in solution by virtue of a balance between electrostatic repulsion and London – van der Waals attraction among each particle ( 18,19). 胶体金在溶液中是通过每个颗粒间静电排斥和London-范德华吸引力之间的平衡这个优点形成的。
Relatively weak attraction between neutral atoms and molecules arising from polarization induced in each particle by the presence of other particles. 在中性原子和分子间,一个微粒由于另一个微粒的存在而被极化所产生的相对弱的吸引力。
On the basis of the magnitude of the magnetic attraction on the special point in realistic magnetic separators, some calculation formula about magnetic attraction for mineral particle in contradiction with practice is indicated. 以实际磁选机里特殊点上磁力的大小为据说明某计算矿粒所受磁力的公式与实际情况相矛盾。