http://www.cqvip.com/main/confirm.aspx?id=24167309
维普网
全网免费
http://epub.cnki.net/grid2008/docdown/docdownload.aspx?filename=YANX200701006&dbcode=CJFD&year=2007&dflag=pdfdown
epub.cnki.net
全网免费
890.4K
http://www.yxyqc.net/CN/article/downloadArticleFile.do?attachType=PDF&id=43
yxyqc.net
全网免费
http://manu19.magtech.com.cn:83/Jweb_yxyqc/CN/article/downloadArticleFile.do?attachType=PDF&id=36
manu19.magtech.com.cn:83
全网免费
http://doc.paperpass.com/journal/20070009yxyqc.html
doc.paperpass.com
全网免费