wastewater from closed circulation

英 美
  • 封闭循环废水
  • circulation n.流通;循环;发行量;消息传播
  • closed adj.关闭的;封闭的;停业的动词close的过去式和过去分词.
  • from prep.出自;来自;从(...起)
  • wastewater n.废水;污水