inverse circulation

• 反循环

inverse circulation的用法和样例：

例句

1. The drill can be used in the drilling technologies of normal or reverse circulation in the quaternary period gravel or hand rock ground.
   演练中，可用于钻井技术的正常或反循环在第四纪时期，砾石或手岩石地面。
2. The special reverse circulation swivel that matches with the improved shaft is developed.The construction and application of the swivel are introduced in this paper.
   本文介绍了所设计的反循环水龙头的结构组成及其现场使用情况。