方向特性 directional characteristics 导向力 directional force 定向回转仪，定向回转罗盘 directional gyro （dir.gyrocompass， dir.gyroscope) ..
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bi-directional force feedback 双向力反馈
directional bit side force component 定向钻头侧向分力
directional intermolecular force 定向分子间力
The formation natural deflecting law and force are the basic geological foundation for the well trajectory control in directional wells and deflecting-protection in vertical wells.
地层自然造斜规律和造斜能力是定向井井眼轨迹控制和直井防斜打直的基本地质依据。
The influencing regular pattern of depths of deflection point, line slope and casing dimension on horizontal force of directional wellhead is analyzed by case calculation.
通过算例，分析了造斜点井深、造斜率以及套管尺寸对井口水平力的影响规律。
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