Original: Nagqu Prefecture ( also Naqu or Nagchu ) ; ; Wylie : Nag-chu Sa-khul ; simplified Chinese : é # æ å å ; pinyin : NÃ qÅ '' DÃ qÅ '' ) is the largest prefecture of the Tibet Autonomous Region .
Simplified: Nagqu Prefecture ( also Naqu or Nagchu ) ; NÃ qÅ '' DÃ qÅ '' ) is the largest prefecture of the Tibet Autonomous Region .