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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Hydraulic walking, with the completion of the various operating actions scaffold, improve efficiency, each machine can save much labor force.

采用液压行走，各个操作动作脚手配合完成，提高工作效率，每台机器可以替代大量的人力工作强度。

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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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