Also the new technology of finish machining for pipe die has been established, the approaches to increase the machining efficiency of the pipe die have been raised as well.
制订了新的管模精加工工艺，并提出提高管模产品加工效率的途径。
The machining technology of aluminum alloy surfaces with a good surface finish and edge finishing is very important and required in many industries.
在许多行业的铝合金加工技术中，较高的表面光洁度及切削刃质量很重要，也很需要。
Therefore, it is a new way for difficult-to-cut material to deep-hole finish machine by applying ultrasonic vibration machining technology to deep-hole lapping.
因此，将超声振动加工技术应用于深孔研磨加工中，为难加工材料的深孔精加工开辟了一条新的途径。
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