moreover, they were capable of using stone axe, adze and chisel to process timber and built the 「pole-railing」 style houses;
此外,他们还会用石斧、锛、凿加工木材,因地制宜建造「干栏」式房屋;
the edges of axe, adze and chisel had been finely grinded and had no sign of being used, indicating that they were not tools of practical use but formalized symbols.