The divergent lens only enlarges the Angle of horizontal divergence and not the Angle of vertical divergence.

发散透镜只增加水平发散角而不增加垂直发散角。

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When you get closer, you see that each horizontal section is made up of two pieces that converge in a right angle.

当你走近它时，会看到每个水平部分由两个互为直角的单元组成。

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Examples are given at the end of the paper to show the influence of the horizontal elbow radius and Angle on the pipeline internal forces and displacements.

文末用算例说明了水平弯头的曲率半径和弯头夹角对管道内力、位移的影响。

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Tim Probert, president of global business lines, says that horizontal drilling, a process in which a well is drilled down vertically and then angled around a curve to reach reservoirs from a horizontal angle that increases the well's exposure, is now 55% of Halliburton's total activity.

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