利用一系列适当形状的元素将计算区域离散，在元素内采用线性插值函数。
The computational domain is discretized by a series of elements with adaptable shape, linear inter-potation function is used in each element.
线性边界元法（LBEM）是在常数边界元法（CBEM）的基础上，从线性插值函数出发将边界单元按线性分布来进行处理的一种数值方法。
The linear boundary element method (LBEM) is based on the constant boundary element method (CBEM), it makes boundary element into linear segment from linear interpolating function.
一个非常简单的方法是使用线性插值，它假定未知函数的线性每对之间的连续点。
A very simple method is to use linear interpolation, which assumes that the unknown function is linear between every pair of successive points.
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