Local public services - guidelines for service activities relating to drinking water supply and sewerage - part 1 : user services 本地公共服务.饮用水供应和废水排放服务指南.第1部分:用户服务
A small but growing number of cities are beginning to use highly treated wastewater to supplement drinking water supplies 有一小部份正在成长中的城市也开市使用高废水处理,补足饮用水的供给。
Salt water is already entering the country ' s drinking water supply , as well as damaging plants that produce fruit and vegetable 海水已经侵入该国饮用水供水系统,同时也在侵害生产水果和蔬菜的种植园。
Cholera is usually spread through water or food , in places where conditions are dirty and drinking water supplies are unsafe 霍乱常常是在环境比较差的地方通过水或者食物传播,也可以通过饮用不干净的水。
Local public services - guidelines for drinking water supply and sewerage service activities - part 2 : management of a sewerage network 地区公共服务.饮用水供应和废水排放服务指南.第2部分:废水排放网络管理