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就导航系统而言,CD—ROM似乎将成为历史,取而代之的是数字视频碟(DVD)设备.这两种导航系统的主要区别在于,轿车导航系统用DVD的存储量比CD—
In the case of navigation systems, the CD-ROM seems to be history and replaced by a digital video disk (DVD) device.The main difference between these two navigation systems is that car navigation systems use DVDs more storage than CD-