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Filters ((Creator:于长江) AND (Date Issued:1992) AND (Funding Organization:国家自然科学基金资助课题) AND (Document Type:期刊论文))
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fangxueping分方学平 2 jiangzhicheng分蒋致诚 2 lishuben分李树本 2
yuzhangjiang分于长江 2 hejinhai分何金海 1 luoxihui分罗锡辉 1