The hydrogenation process of nitrobenzene(NB,99 wt%) and di-nitrobenzene(DNB,1 wt%) has been performed in a fluidized bed.是什么意思_The hydrogenation process of nitrobenzene(NB,99 wt%) and di-nitrobenzene(DNB,1 wt%) has been performed in a fluidized bed.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句