CHENG Yu-Qiao, YANG Yao-Zhong, NIU Chun-Rong, MIAO De-Yu, CHEN Xing-Guo, HU Zhi-De
2004, Vol. 62(2): 183-187
1. College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000;
2. Geological Scientific Research Institute, Shengli Oilfield, Dongying 257015;
3. Headquarters of Shengli Oilfield, Dongying 257001
null