roughadj.粗糙的；粗略的，大概的；粗暴的；艰难的；讨厌的；不适的；汹涌的adv.粗糙地；粗暴地n.粗制品；暴徒；高低不平的路面vt.使粗糙；殴打；草拟rough mix初步混合

1. Several kinds of reformation of small mills are analyzed and a typical mini-mill production system with a flexible slab mill is recommended.
   分析了几种小型轧机改造的方案，并推荐出一种典型的带有柔性开坯机的短流程生产系统。