You can use a virtual coordinate system and keep your program distanced from the hardware, or you can use the device coordinate system and snuggle right up to the hardware.
你可以用虚坐标系统并且保持你的程序与硬件的距离，或者你可以用设备坐标系统而完全依赖于硬件。
To address the holes problem in wireless sensor networks, a novel geographic routing algorithm, named Double Greedy algorithm (DGA), was proposed based on virtual coordinate system.
针对地理路由算法中的路由空洞问题，通过引入虚拟坐标的方式，提出了一种新颖的无线网络地理路由算法——双重贪婪算法(DGA)。
Most traditional graphics languages use a "virtual" coordinate system with horizontal and vertical axes that range (for instance) from 0 to 32,767.
大多数传统的图形语言用具有范围(例如)从0到32,767的水平和垂直轴的“虚”坐标系统。
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