Drilling in deep hole

• 深孔加工

Drilling in deep hole的用法和样例：

例句

1. The technique of Squeeze Liquid Film Damping is adopted in precise boring.
   在精镗孔加工中采用挤压液膜阻尼技术。
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。