本文研究了应用于地下工程的动、静态自动精密导向系统。
In this paper, the dynamic, static and automatic precision orientation system applied to underground projects is studied.
文中详细介绍导向钻井系统在港深24 - 26井的应用情况、钻具组合、参数优选，并进行效果分析。
The paper presents the application, bottom hole assembly and parameter optimum of steering drilling system in Gangshen well 24-26. Meanwhile, the applied effect is analysed.
介绍汽车内部信息导向行驶系统中地磁与惯性汽车导航系统的构成、原理及应用实例。
This paper introduces the composition, principles and application examples of the geomagnetism and inertia automobile guidance system in the interior information guidance system.
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