1. 分界矿柱：boundary parenchyma || 轮限薄壁组织 | boundary pillar || 分界矿柱 | boundary pivot || 边界基点
2. 境界顶柱：三个支柱:three-pillar system | 境界顶柱:Boundary pillar | 煤柱设计:Pillar Design
3. 界碑：boundary marker;界碑; ; | boundary pillar;界碑;BP; | bowser truck;加油车; ;
4. 界桩：boundary line 边界,边界线 | boundary pillar 界桩 | boundary river 边界河流