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LIU Yu-Ying, LI Zheng-Qiang, LI Fen-Rui
HPMug2oMmNrOfxWQHLiEksa6s0hFu9Ox348d7QefarYlaFR5ArkhOwm3Da1pmxmxCtenj1+6luWD#r#n+EPn9L6Ce+9onqnMlT+i . 2010, (1): 53 -56 .  DOI: 10.3969/j.issn.1009-0479.2010.01.014