无穷级数的收敛性与发散性与此概念有关。
Convergence and divergence of infinite series depend upon this concept.
从思维方法上看，要把逻辑思维与非逻辑思维结合起来，把收敛式思维与发散式思维结合起来。
With regard to thinking methodology, fostering creativity requires the combination of logical and non logical thinking and the combination of divergent and convergent thinking.
可是，由于存在着多种影响收敛和发散的机制和力量，至今，我们仍难以用一个完整的理论来解释各国（地区）的经济增长经验以及兴盛、衰落。
Since there exist many kinds of mechanism and force working on convergence or divergence, we can hardly use one integrated theory to explain the development of economy up to now.
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