deep - hole processing

• 深孔加工

deep - hole processing的用法和样例：

例句

1. It makes the microhole processing technology develop faster.
   这促使微细孔加工技术也得到了飞速发展。
2. The promoted design of the rolling tool used in precisely machining deep holes with an effective multiplex boring machine is introduced.
   介绍了高精度深孔加工用高效复合镗滚压工具的改进设计。