机译:1H核磁共振和X射线衍射表征重油馏分的平均分子结构
State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Qingdao 266555;
Petrochemical Research Institute, PetroChina Company Limited, Beijing 100195;
State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Qingdao 266555;
State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Qingdao 266555;