导向工具是导向钻井系统的核心，是实现井下闭环钻井的关键因素之一。

Steering tools are essential part of steering drilling system and one of key factors for fulfilling downhole closed - loop drilling.

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井下随钻测量系统的存储单元是调制式旋转导向钻井系统的关键技术之一。

The storage unit of measurement while drilling system is one of the important parts of rotary steerable drilling tool.

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旋转导向钻井工具稳定平台的闭环控制是调制式旋转导向钻井系统的关键。

The closed loop control of the stabilizing platform on the rotary steering drilling system is the key technique of the modulating rotary steering drilling system.

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