Iron and steel weapons are difficult to preserve, and the museum's funds were limited. To prevent the sword rusting away, the curators had no choice but to seal it in a thick layer of grease, and this naturally meant it could not be exhibited.
由於鋼鐵兵器的保養十分不易，遼博經費有限，為了避免鏽蝕，只得將刀用厚厚的黃油封住，自然也就無法展示了。