water-drinking safety饮水安全
rural water-drinking safety农村饮水安全
everyday water-drinking amount日常饮水量
non-drinking water生活杂用水;[环境] 非饮用水;非饮用水
drinking water-borne经饮水
directly-drinking water直饮水
Low-strain water drinking低张饮水
piped direct-drinking water管道直饮水
pipeline directly-drinking water管道直饮水