The relative theory and methods on the analysis of the fatigue and fracture of mechanical components by means of the finite element method are discussed.
系统阐述利用有限元法对机械结构零部件进行疲劳断裂分析的相关理论和方法。
And in co-ordination with maths methods, we will introduce the relative theory in management, such as marginal balance, the flexibility in enterprise management, and the idea of stability, etc.
同时，结合数学方法我们介绍了有关的经营管理原理，如边际平衡原理，企业经营的灵活性、稳定性等概念。
In pursuit of the relative competitive advantage, people began to find new theories and research methods, and then the theory of customer perceived value is produced.
为了追求相对的竞争优势，人们开始致力于寻找新的理论和研究方法，顾客感知价值理论就是在这样的背景下产生的。
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