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roughers呢坯

1. The article introduces the structure feature and heat treatment technology of a low vacuum nitriding furnace for treating axle workpieces.
   本文介绍了处理细长轴件的低真空氮化炉的结构特点和热处理工艺。