1. chemical operations
   化学战
   
2. operations research
   n.<美>作业研究,运筹学
   
3. theater of operations
   n.战区,作战地带及其邻近地区
   

1. Legal Business operations.
   合法的生意经营
2. After her operation she suffered from general debility.
   她在手术后感到全身虚弱.
3. The agency was a shoestring operation at first.
   这家经销店刚开始时是小本经营的生意。
4. They blindfold my eyes for a week after the operation.
   手术後他们把我的眼睛蒙了一周时间。
5. An operation is needed to remove your tonsil.
   需要进行手术摘除你的扁桃体。

　1个名词解释