rotary drilling steering tool 旋转导向钻井工具
Mechanical design of stabilized platform unit is one of the key techniques in the rotary steering drilling tool.
稳定平台单元机械系统的设计是旋转导向钻井工具的关键和难点之一。
One of the key problems of designing the control valve of modulation rotary steering drilling tool is the design of high pressure hole of upside valve.
设计调制式旋转导向钻井工具控制阀的关键问题之一是上盘阀高压孔的设计。
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