Welcome to HPMug2oMmNrOfxWQHLiEksa6s0hFu9Ox348d7QefarYlaFR5ArkhOwm3Da1pmxmxCtenj1+6luWD#r#n+EPn9L6Ce+9onqnMlT+i! Today is
ＰｒｏｏｆｏｆＲｏｌｌｅＴｈｅｏｒｅｍ ａｎｄＩｔｓＡｐｐｌｉｃａｔｉｏｎ
ＬＥＩ Ｙａｎ ＬＩ Ｑｉｎｇ-ｑｉｎ
JOURNAL OF KUNMING METALLURGY COLLEGE . 2011, (10): 72 -75 .  DOI: １０．３９６９／ｊ．ｉｓｓｎ．１００９－０４７９．２０１１．０５．０１６