boundary set边缘集boundaryn.边界；分界线boundary contour line边界轮廓线boundary shear stress边界剪切应力boundary water course[法] 国境河流boundary distribution边际分布boundary network node边界网络节点, 分界网络节点boundary layer effect界面层效应boundary layer theory边界层理论boundary homomorphism边缘同态boundary breakthrough边界联络横巷boundary registration边界配准