boundary set边缘集boundaryn.边界；分界线boundary optimization境界优化boundary of stability稳定性边界,稳定性界限boundary compensation区际补偿Boundary crown pillar境界顶柱boundary nonlinearity边界非线性boundary of landslide滑坡边界boundary point method边界点法boundary-layer flow边界层水流,边界层流动boundary layer region边界层区域boundary surface wave界面波