town mains meaning in English
城市(煤气)总管道。
Examples
- Water supply for high rise building , fire profection , heating , chilledwater in rhe air conditioning system , town main , residential complex , industrial application , and iow pressure circulator of the boiler system
高层建筑生活、消防、采暖、空调系统给水，城镇、城市住宅小区公共供水，也可用于工矿企业给排水以及低压锅炉循环给水。