Hydraulic performance of advanced machine, high efficiency, low noise operation.

水力性能先进，整机效率高，运转噪音低。

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To improve the precision and the efficiency in straightening drill pipes, we make a research in the control system of the automatic hydraulic straightening machine.

为了提高钻具校直的精度与效率，我们进行了全自动液压校直机控制系统的研究。

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In this paper, the main research content is CNC efficiency of Variable Velocity Variable frequency Crumb cake hydraulic machine.

本文主要研究内容是变频调速液压屑饼机的数控效率问题。

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