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3Â¥2011-03-08 19:00:17
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2Â¥2011-03-08 18:57:56
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ankang276(½ð±Ò+4): 2011-03-08 20:57:03
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µÚÒ»¾äµÄºóÃæ²¿·ÖÄã×Ô¼º½²Óï̬¸Ä¸Ä¡£ The results indicated that the divinyl benzene polymerization ammoniation product, the divinyl benzene and pyridine polymer, divinyl benzene and imidazole polymer pertain to mesoporous structure with surface area between 200 and 800m2/g, pore size distribution between 20 and 50nm. |
4Â¥2011-03-08 19:08:33
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5Â¥2011-03-08 19:14:47













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