数学模型是基于材料失效分析提出来的，同时结合了BS模型的方法理论背景。

In this paper, the mathematic model is based on the material invalidation analysis, meanwhile combines theory and academic background of the well-known BS model.

youdao

图像盲复原具有很强的数学背景，同估计理论、病态逆问题求解理论、线性代数、随机过程和数值分析等都有着密切的联系。

Blind image restoration has a strong background of mathematics, including estimation theory, ill-posed problem solution method, linear algebra, stochastic process, numerical analysis, and so on.

youdao

第一部分介绍了可靠性数学理论的背景和研究方法以及本文的结构与组织。

In Chapter I , we introduce the background of the reliability theory , research method and the organization and structure of this dissertation.

youdao