CORC
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限定条件 ((内容类型:专利))
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2019 1 2018 3 2015 5
2014 3 2013 2 2012 2
2011 3 2010 2 2007 1
2005 1 2004 2 2003 2
1999 1 1998 1 1997 1
1996 2 1994 1 1993 1
1991 1 1988 1 1986 2
1984 3 1983 1 1982 1
1970 1 1967 1

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