By default, launch in portrait orientation.

默认情况下，在竖向启动。

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Gets the Angle, in degrees, that the portrait orientation is rotated to produce the landscape orientation.

获取旋转纵向方向以生成横向方向的角度，以度为单位。

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A common scenario is to have a landscape page in the middle of a document, whereas the other pages are in a portrait orientation.

常见的情况是在一个文档中包含横式页面，而其他页面都是纵向的。

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Placing the heavier components at the top and bottom of the smartphone also helps the ergonomics while using the machine, and it is comfortable to hold for extended periods, assuming you are holding it in portrait orientation.

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Whereas the Note 10.1 positioned its speakers on the front face (read: out of the way of consumers' hands), the Note 8.0's smaller size and portrait orientation mean users will have to be mindful about not covering the lower speaker when watching video in landscape.

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At the top of the face is a long slot into which the iPad can be placed in portrait or landscape orientation.

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