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定向钻进的成败关键在干对造斜工具定向的准确性和可靠性。
The key problem of directional drilling is the accuracy and reliability of orientation of deflecting tools.
水平井井眼轨道预测和控制问题的技术关键是准确计算各种造斜工具的造斜能力。
To exactly calculating the build rate of building motor assemblies and others is a key point of correct prediction and control for bit trajectory in horizontal drilling.
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