boundary row保护行boundaryn.边界；分界线Boundary Points Allocation Data拨地资料boundary apotracheal parenchyma轮界(界限)离管薄壁组织boundary chain code abstraction链码提取boundary layer parameterization边界层参数化boundary radii of excited atoms原子边界半径boundary layer casing treatment边界层壁面处理boundary theory of organization组织的界限理论boundary layer separation point边界层分离点Boundary of weld influence zone焊缝影响区边界boundary singular kernel method边界奇异权法