Dvgw drinking water supply systems ; operation dvgw code of practice 饮用水的供水系统.第8部分:运行
Pn 10 piston type gate valves for use in drinking water supply systems 家用供水装系统的截流阀. pn10活塞式滑阀
Aircraft ground supply . connections for drinking water supplied under pressure 飞机地面供给.饮用水加压供给接头
Investigation of the residents drinking water supply and qality in meizhou city 梅州市居民生活饮用水供水与水质卫生状况调查
We will accelerate the development of safe drinking water supplies and provide safe drinking water for another 32 million people 加快安全饮水设施建设,今年再解决3200万人的安全饮水问题。