refining practice

英 美
  • 精炼
  • practice n.练习;实行;习惯;业务v.练习;实践;开业;执业
  • refining n.精炼法;改善;匀料动词refine的现在分词.
    1. The steel refining equipment alone may cost twenty million pound.
      单单钢的精炼设备就可能值两千万英镑。
    2. Finally, we need to expand and enhance our refining capacity.
      最后,我们应该扩大并且提高我们精炼的容量。