On some important inequalities of Directly-Riemann integrate
he lai_xiang 1; yang ming_an 2; xiong qi_cai 3 (1.hanjiang oil pump technology school; hanzhong 723000; china; 2.attached school of shaanxi institute of technology; hanzhong 723003; china; 3.dept.of mathematics of hanzhong teachers college; hanzhong 723000; china)
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How to set up and apply grey GM(2)
wang shu_xun 1; xiong qi_cai 2; liu feng 1 (1.dept. of b.c. of shaanxi institute of technology; hanzhong 723003; china; 2.hanzhong teachers college; hanzhong 723000; china)
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