都兰县dū lán xiàn释义Dulan, a county in Haixi Mongol and Tibetan Autonomous Prefecture 海西蒙古族藏族自治州[Hai3 xi1 Meng3 gu3 zu2 Zang4 zu2 Zi4 zhi4 zhou1], Qinghai单字详解都dou兰lan县xian