The method of RVD relative navigation based on relative differential pseudo range of GPS was studied.

研究基于GPS相对伪距差分技术的RVD相对导航方法。

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RVD diamond with pure color and high purity, suitable for resin bond diamond tools making and rough grinding.

金刚石破碎料，颜色纯净，杂质含量极低，适合树脂金刚石的制造和粗研磨使用。

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Conclusions: Compared to group control, HD increases the risk of RVD, particularly in the presence of brachial AVF.

结论：与对照组相比，透析增加右心室功能不全的风险，特别是经肱动静脉瘘透析。

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For the person who just has to have everything, or is willing to spend more money to stick with DVD than cave in and buy two separate high definition players ( or not), Rotel has announced the forthcoming RVD-1093 upscaling DVD player.

ENGADGET: Rotel unveils pricey 1080p upcoverting RDV-1093 DVD player