西南石油大学学报(自然科学版) ›› 1992, Vol. 14 ›› Issue (1): 122-127.DOI: 10.3863/j.issn.1000-2634.1992.01.019

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  • Received:1991-01-16 Revised:1900-01-01 Online:1992-02-20 Published:1992-02-20