在水平面与倾斜的岩层或断层之间的角。

The Angle between the horizontal plane and a tilted rock bed or fault.

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断层运动可分解为轴向分量(与管轴平行)、水平面的侧向分量(与管轴垂直)和竖直分量。

A fault movement can be resolved into an axial component (parallel to the pipe axis), a lateral component (perpendicular to the pipe axis) in the horizontal plane and a vertical component.

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