The page transformation maps page coordinates to device coordinates.

页面变换将页面坐标映射到设备坐标。

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Beginning on the GDI mapping mode, the paper discusses the concepts, meaning and relation of view port based on logic coordinates and window based on device coordinates.

本文从GDI映射方式入手，对基于设备坐标的视口和基于逻辑坐标的窗口的概念、内涵及其相互关系进行了分析介绍。

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Device coordinates are the coordinates used by the physical device being drawn on, such as a screen or a printer.

设备坐标系是在其上进行绘制的物理设备(如屏幕或打印机)所使用的坐标系。

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This isn't a tracking device in the traditional sense -- while it provides location info, it doesn't retain coordinates, so you can't pop this on a vehicle to see where your kids really go after school.

ENGADGET: BluTracker lets you locate your stuff within 2,500 feet, we go hands-on (video)