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n造句
241. A mesostructured titanium - vanadium oxide has been synthesized using n - dodecylamine as a template. 242. Agilent's N 6032 A arbitrary waveform generator delivers unprecedented performance for creation of complex wideband waveforms. 243. Methods Etiracetam was synthesized from 2 - pyrrolidone by N - alkylation and aminolysis. 244. Cyrus Teed, an alchemist from Utica , N. Y. , was one of the first people to popularize this idea.