断层最基本的特征就是平行破裂面有差异运动的产生。我们走近些，然后用罗盘测量一下那个倾斜的断面的产状。

The essential feature is differential movement parallel to the plane of the fracture. Let's get closer and use the compass to measure the attitude of that inclined plane.

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拉德先生说，在33街西段131号的这笔交易中，最主要的交易活动是用勘测风水的工具罗盘，在这座房产外部进行勘察和测量。

As the deal at 131 West 33rd progressed, the principal of the business was spotted outside the building, taking measurements with a feng shui kit, Mr. Rudder said.

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现在用你们的罗盘去测量一下那个背斜两翼的产状。

Now, use your compasses to measure the attitude of the two limbs of the anticline.

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