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1·Study is made of the vibrating ball miling for ultra-fine WC powder preparation.

对振动球磨法制取超细碳化钨粉末进行了研究。

2·Through process analysis of NC-miling, it presented kind of treatment and improvement means in this paper.

通过数控铣削工艺分析，提出有关处理与改进方法。

3·This machine applies to trimming, profiling copy, beveling and miling the hole of the half finish product of packing boxes.

本机适用于包装盒半成品的修边、仿形、倒角、铣孔。