tundish maintenance time(This arrangement has made it possible to perform on-line tundish maintenance work on the same floor as the caster operation, eliminate tundish handling by crane and achieve a sharp reduction in tundish maintenance time. 这一方案使得中间包在线维修与连铸机操作能在同一平台上进行，从而免除了用吊车吊运中间包，明显缩短了中间包维修时间。)
planned reline(Blast furnace projects include a planned reline of D furnace in 1998 and a rebuild of No.3 D furnace stove in 1997.高炉项目包括 D 高炉于 1998 年进行计划大修和 D 高炉 3 号热风炉于1997年进行重建。)
relining of blast furnace(Much of this investment will be used to complete projects that are currently under construction, including a new galvanizing line, a cold-rolling mill for stainless steel, and the relining of a blast furnace. 这项投资的大部分将用于完成目前的在建项目，包括一条新的镀锌作业线，一台不锈钢冷轧机和一座高炉的大修。)
planned maintenance of blast furnace(【技】高炉在长期的连续生产中，按计划休凤进行设备与装置的检查、维修和更换。计划检修分为定期计划检修和不定期计划检修。定期计划检修指的是为使高炉生产达到高产、低耗、高效、安全的目的，每月定期进行一次的计划检修，通常需休凤几小时，进行检修与更换设备零部件等；不定期计划检修指的是当设备或装置发生难以继续运行的故障时需进行的较长时间的检修。)
