..............page:378-379,397
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..............page:367-369
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..............page:346-348
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..............page:362-364
Studies on Trust Models of P2P Network Security
zhang jingmei 1; jin yan 2 (1 school of computer science and technology; shandong university; jinan 250061; 2 school of information science and engineering; jinan university; jinan 250022; china)
..............page:343-345
..............page:352-354
..............page:336-339,358
..............page:380-383
Research and Application of the New Type Drilling Fluid Lubricant HML-1
zhu quanta 1; liu baoshuang 2; tang daixu 2; li haibin 2 (1 the first company of bohai drilling engineering; shengli petroleum administrative bureau; dongying 257137; china; 2 oil chemistry department; research institute of drilling technology; shengli petroleum administrative bureau; dongying 257017; china)
..............page:384-386,389
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