down-stream rolling mill(The new continuous strip casting technology will have a major impact on the design of the downstream rolling mills. 这种新的带钢连铸技术将对下游轧机的设计有重要影响。)
catchment area 1. An area from which surface runoff is carried away by a single drainage system. 2. The area of land bounded by watersheds draining into a river, basin or reservoir(1. 一个区域，从那里通过一条排水系统来排放地面径流。 2. 通过分水线来界定的地域，排放到河里、内港或水库。)
