What are the characteristics of the embroidery lace on the back of the northern Wei honeysuckle turtle unearthed in Dunhuang Mogao grottoes?

The embroidery lace with the back pattern of the northern Wei honeysuckle turtle unearthed in Dunhuang Mogao Grottoes is filled with the variation of honeysuckle pattern in the space divided by the intersection of circles and hexagons, thus forming two continuous skeletons with overlapping patterns. The colors from dark blue to light blue, light purple to white, and white to light brown are matched with each other to form anti-halo, which not only enhances the texture of the image, but also creates a new realm. In addition, a kind of woven carpet was found in Bachu site in Xinjiang, and the pattern was woven by warping and weft breaking, which showed a high technical level.