Devote All the Life to the Chinese Heavy Oil Undertaking--On Doctoral Supervisor Xu Chunming, Professor of China University of Petroleum ThePropagandaDepartmentof Party Committee of China University of Petroleum是什么意思_Devote All the Life to the Chinese Heavy Oil Undertaking--On Doctoral Supervisor Xu Chunming, Professor of China University of Petroleum ThePropagandaDepartmentof Party Committee of China University of Petroleum在线翻译_英语_读音_用法_例句