yángmǎchéng
Nota de aplicación
Yangma wall (yangmacheng 羊馬城) literally meaning “goat and horse fortification," first appeared in Tang dynasty records and then also in Song dynasty textual sources. It refers to a wall built either between the city wall and the moat or around a beacon tower. It is usually smaller than the city wall. The yangma wall forms a closed circle around the city wall or the beacon tower, or may be located in certain parts of the city wall to form …