Shooting Angle with the main emphasis. It should be noted, does not apply extreme Angle of depression or elevation.

用拍摄角度来着重强调主体。但须注意，不应用极度的俯角或仰角。

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First this paper discusses the relation between perception of displayed image and Angle of depression in automotive Head_Up Displays (HUDs).

本文首先讨论汽车平视显示器(HUD)中，显示图象的感觉和俯角之间的关系。

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The characters of scratch trace and method of diagramming the faulted seam position with the figs of scratch trace side angle of depression are discussed.

论述了擦痕的特征及利用擦痕侧伏角图解断失煤层位置的方法。

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