Construction of plumbing and treatment of sewage have been pushed ahead in urban areas, and 679,460 m of water supply pipes and 392,770 m of sewage pipes have been laid.

 
  • 加强城镇上下水管网道建设和废弃物的处理工作,建成供水管道679.;46千米、排水管道392
今日热词
目录 附录 查词历史