If having other information about the reservoir, the shape and direction of arbitrary boundary can be determined by reservoir 'plot and imagine.
如果还有油藏的其它信息，可以根据油藏图像的形式确定任意边界的形状和方位。
This method simulates the boundary in half-space into a large crack containing in an infinitely great elastic medium, by which the surface crack in arbitrary shape can be well-treated.
通过把半空间的边界模拟成一个包含在无穷大弹性介质中大裂纹，此法能很好的处理具有任意表面形状的表面裂纹。
Due to its ability to process boundary conditions of arbitrary shape and complexity, fi-nite element method (FEM) may be used to solve this problem.
能处理任意形状及复杂边界条件的有限元素法可作为求解该问题的适合方法。
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