Heisenberg type groups are significant kinds of nilpotent Lie groups of step two and attract attentions of many scholars ([3][4][6][22] etc.)是什么意思_Heisenberg type groups are significant kinds of nilpotent Lie groups of step two and attract attentions of many scholars ([3][4][6][22] etc.)在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句