borehole technology multi
... 双钻孔技术 borehole technology dual 多钻孔技术 borehole technology multi 单钻孔技术 borehole technology single ...
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结合设备所采用的超声波多工具钻孔技术;解决的关键技术和整机的实用效果。
In combination with the ultrasonic multi-tooling techniques, the key problems tackled in the research and the practical application of the machine are also presented.
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