LIU Xiang, Xiang Tian-yuan.1997. Resources and hazards of Cenozoic volcanoes and pyroclastic deposits in Northeastern China [M]. Jilin University Press, Changchun (in Chinese).是什么意思_LIU Xiang, Xiang Tian-yuan.1997. Resources and hazards of Cenozoic volcanoes and pyroclastic deposits in Northeastern China [M]. Jilin University Press, Changchun (in Chinese).在线翻译_英语_读音_用法_例句