NVP is the syndrome that mainly includes nausea, vomit, etc from 6 weeks to 12 weeks of pregnancy.

早孕反应是指妊娠6周到12周之间出现的以不同程度的恶心、呕吐为主要表现的征候群。

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Polyvinylpyrrolidone (PVP) is a kind of fine polymer obtained by free radical polymerization of N-vinyl pyrrolidone (NVP).

聚乙烯基吡咯烷酮(pvp)，是一种水溶性精细高分子聚合物。

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NVP/NVT non-clogging vertical pumps are intended for all kinds of hard applications with waste water, slurries or waste stock.

NVT 无堵塞立式泵应用于含有废水，泥浆，废料等介质的各种苛刻工况的领域。

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