“辅助设施”常见的英文表达是 auxiliary facilities 或 supporting facilities。
auxiliary facilities：强调设施的辅助性、从属性，常用于描述那些辅助主要系统或设备运行的配套设施。例如：The hospital is equipped with advanced medical equipment and a range of auxiliary facilities.（这家医院配备了先进的医疗设备和一系列辅助设施。）
supporting facilities：侧重于说明这些设施是为主要活动或业务提供支持和保障的。例如：The new residential area will have good supporting facilities, including schools, supermarkets, and parks.（这个新的住宅区将有良好的配套设施，包括学校、超市和公园。）