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。
Based on the cutting experiment, the process and effect of ultrasonic vibration boring for precise deep holes by using the double-edge boring cutter are researched.
通过切削试验研究了超声激振双刃镗刀镗削深孔的过程和效果，分析了超声激振双刃镗削的切削机理，讨论了切削参数对加工表面粗糙度的影响规律。
Precise boring of the pinhole is one of the key processes guaranteeing precision in piston machining.
精镗销孔是活塞加工中保证精度的关键工序之一。
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