First one or two layers of plaster mixed with crushed wheat straw and fine hemp-fiber were coated over the carved rough rock.

• 在开凿出来的粗糙岩石上，先涂一层或两层用碎麦秸、细麻刀合好的泥，再抹上一层薄如蛋壳的白石灰加以打磨。