First, the paper gives the experiment design method for constructing approximation model.
本文首先给出了建立近似模型前所需的实验设计方法。
The first part deals with the fundamental physical assumptions and mathematical model, while the second part describes finite-element approximation and method of calculations.
第一部分提出了基本的物理假定，讨论了数学模型；第二部分是有限元逼近和计算方法的讨论。
We first formulate the problem as a stochastic nonlinear programming problem and then propose a new simple method for solving it via some approximation techniques.
本文先把问题转化为一个随机非线性规划问题，然后用逼近技术给出一个简单的求解方法。
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