Based on the analysis, it forms the mathematical pattern, which vividly describes the effective accumulation volume of the scientific and technological literature.

通过对科技文献增长速度的机理分析与文献损耗问题的探讨，建立起了形象描述科技文献有效累积量的数学模型。

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Competence, the continuous and effective accumulation of knowledge and ability, is a dynamic power which determines a bank's long-term trend of development and competitive advantage.

竞争力是知识、能力的的不断积累和有效组合，是一种动态能力，它决定了银行的长期发展趋势和竞争优势。

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Tax laws, specifically those which encourage leverage while discouraging the accumulation of equity capital on balance-sheets, are perhaps the greatest deterrent to its effective operation.

ECONOMIST: Economic reasoning