辅助建筑物 meaning in English

accessory building
ancillary building
auxiliary structure

Ancillary block of old ping shan police station
旧屏山警署的辅助建筑物
The ping shan police station consists of a two - storey structure with an embracing arched verandah and a single - storey ancillary block . possessing unique architectural and historic significance , the building was accorded grade iii historical building overlooking the ping shan heritage trial linking up with a number of unique monuments such as the tang ancestral hall , tsui sing lau pagoda and kun ting study hall etc
旧屏山警署由一座拱形长廊的双层建筑物及一座单层的辅助建筑物所组成，它拥有独特的建筑和历史意义，已被列为三级历史建筑物，其位置能俯瞰贯通邓氏宗祠、聚星楼及觐廷书室等多个独特古迹的屏山文物径。