中文摘要：

当前学者认为共度更多的是系统内部特征,差异度更多的是系统外部特征;系统基于共性才得以组建,系统因为差异度太多而引致分裂。行文根据同基同构的要素无法生成系统,即一个稳定系统内的子系统需在其组成要素的成分、量、三维构型以及其在系统中的空间位序和功能方面存在差异。参照同一知识元胞被越少子系统共享则其携带的差异度也就越大的原则,设计了衡量系统差异性的指标;在对含时系统测度过程中,提出学习引致差异度品质变差的观点,即学习的过程是知识共享的过程;同时在分析差异度引致子系统团聚中引入系统引力的概念,即把系统引力表征为差异度的函数。

英文摘要：

Present scholars believe that common is the internal features of the system,and differences is the external features;System was able to set up based on common,and differences cause the system to be split.Because the same structural elements can not generate system,namely,subsystems within a stable system must exist differences on the elements,composition,structure,function and its spatial location in the system.Refer to the principles that the same cell is less knowledge to share,its subsystems to carry the greater the degree of difference,the paper design indicators to measure differences in the system;the article raises the view that the differences aggregae due to learning in the course of measuring system,namely learning process is the process of knowledge sharing.Because aggregation is caused by the difference in degrees,Therefore,the article brings into the concept of system gravity,namely gravitational system is a function of differences in degree.